HEASARC News

Important Upcoming
Proposal Deadlines
Include

The deadline for the Swift Guest Investigator - Cycle 11 component of NASA's ROSES-2014 program is September 25, 2014.

The anticipated deadline for the XMM-Newton Fourteenth Announcement of Opportunity (AO-14) is October 10, 2014.

Recent News
  • Swift CALDB Data updated (30 Jul 2014)
    The Swift Caldb has been updated for the SC (update version 20140718) and the XRT (update version 20140709)...
  • NASA's DXL Rocket Settles Interstellar Debate (29 Jul 2014)
    New findings (Galeazzi et al. 2014, Nature, in press; Snowden et al. 2014, ApJL, 791, L14) from the DXL (Diffuse X-ray emission from the Local Galaxy) mission have resolved a decades-old puzzle about a fog of low-energy X-rays observed over the entire sky. Astronomers have now confirmed the long-held suspicion that much of this glow stems from a region of million-degree interstellar plasma known as the local hot bubble.
  • NuSTAR CALDB Update (25 Jul 2014)
    The NuSTAR CALibration DataBase was updated on July 25, 2014 (CALDB version 20140715). This updates the NuSTAR clock correction file to version 37, valid up to 2014-07-15.
  • PIMMS updated to Version 4.7a (25 Jul 2014)
    Version 4.7a contains an updated post-launch effective area curve file for NuSTAR...
  • Viewing tool updated (22 Jul 2014)
    The Swift pole constraints have been updated in the Viewing tool. The revised coefficients extrapolate the trend for the next year. The web interface has also been enhanced with improved error handling.
  • NASA's Chandra X-ray Observatory Celebrates 15th Anniversary (22 Jul 2014)
    Fifteen years ago, the Chandra X-ray Observatory was launched into space aboard the Space Shuttle Columbia. Since its deployment on July 23, 1999, Chandra has helped revolutionize our understanding of the universe through its unrivaled X-ray vision. To celebrate its 15th anniversary, four new images of supernova remnants, the Crab Nebula, Tycho, G292.0+1.8, and 3C58 , are being released.
  • Fermi Finds A 'Transformer' Pulsar (22 Jul 2014)
    In late June 2013, an exceptional binary containing a rapidly spinning neutron star, the 1.7-millisecond pulsar named PSR J1023+0038, underwent a dramatic change in behavior never before observed. The pulsar's radio beacon vanished, while at the same time the system brightened fivefold in gamma rays, the most powerful form of light, according to measurements by the Fermi Gamma-Ray Space Telescope.
  • 2XMMi/SDSS Galaxy Cluster Survey (21 Jul 2014)
    This catalog listing the X-ray and optical properties of 145 X-ray-detected clusters of galaxies (Takey et al. 2014, A&A, 564, A54) is now available in Browse and Xamin.
  • Chandra Cycle 16 Accepted Proposals and Targets Lists Are Now Available (17 Jul 2014)
    The peer-review recommended targets and proposals for Chandra Cycle 16 for regular, large, multicycle and XVP-type programs, as well as the approved joint proposals with other ground-based and/or satellite facilities, theory proposals and archive proposals, have been released.
  • Low-Frequency Radio Catalog of Flat-Spectrum Sources (LORCAT) (16 Jul 2014)
    This catalog of 28,358 radio sources with flat spectra between 325/352 MHz and 1400 MHz (from Massaro et al. 2014, ApJS, 213, 3) is now available in Browse and Xamin.
  • BeppoSAX High-Energy Large Area Survey (HELLAS) X-Ray Source Catalog (15 Jul 2014)
    This catalog of 147 5-10 keV X-ray sources detected by the BeppoSAX MECS in a survey of 85 sq.deg. (from Fiore et al. 2001, MNRAS, 327, 771) is now available in Browse and Xamin. The related table of radio sources and/or upper limits at the positions of these X-ray sources (from Ciliegi et al. 2003, MNRAS, 342, 575) is also available
  • Chandra CALDB 4.6.2 installed at the HEASARC (14 Jul 2014)
    CalDB 4.6.2 is now installed and available at the HEASARC. Chandra 4.6.2 was released on July 9, 2014. This release corrects an error in the HRC branch index file which causes the 2012 and 2013 HRC-I BKGRND files to be selected in reversed order, which affects HRC-I-related tools such as hrc_bkgrnd_lookup and fluximage. Note that this release requires CIAO 4.3 or higher...
  • Out of An Hours-long Explosion, A Stand-In For The First Stars (11 Jul 2014)
    Astronomers analyzing a long-lasting blast of high-energy light observed in 2013 report finding features strikingly similar to those expected from an explosion from the universe's earliest stars. If this interpretation is correct, the outburst validates ideas about a recently identified class of gamma-ray burst and serves as a stand-in for what future observatories may see as the last acts of the first stars.
  • VLA Low-Frequency Sky Survey Redux (VLSSr) Source Catalog (10 Jul 2014)
    The latest version of the VLSSr catalog (from Lane et al. 2014, MNRAS, 440, 327) of 92,965 74-MHz radio sources (components) above a 5-sigma threshold in 3 pi sr of the sky is now available in Browse and Xamin.
  • WebPIMMS tool updated (09 Jul 2014)
    WebPIMMS has been updated with a revamped web interface that has improved error handling.
  • XSPEC 12.8.2a Released (09 Jul 2014)
    Updated July 7, 2014. Adds "nowrite" option to PyXspec AllData.fakeit command ...
  • NGC 1316 (Fornax A) Chandra X-Ray Point Source Catalog (09 Jul 2014)
    This catalog listing the properties of 95 X-ray point sources detected by the Chandra ACIS in the field of NGC 1316 (and NGC 1317) from Kim & Fabbiano 2003, ApJ, 586, 826 is now available in Browse and Xamin.
  • NGC 1512/NGC 1510 XMM-Newton X-Ray Source Catalog (09 Jul 2014)
    This catalog listing the X-ray properties and identifications of 106 X-ray sources detected by XMM-Newton in the field of this pair of interacting galaxies (Ducci et al. 2013, A, 145, 143&A, 566, A115) is now available in Browse and Xamin.
  • M 83 Chandra X-Ray Point Source Catalog (07 Jul 2014)
    This catalog listing the X-ray properties and identifications of 458 point sources detected by the Chandra ACIS in 12 observations of M 83 totalling 790 ks (Long et al. 2014, ApJS, 212, 21) is now available in Browse and Xamin.
  • INTEGRAL AO-12 General Program Approved (03 Jul 2014)
    The INTEGRAL AO-12 General Program, as recommended by the Time Allocation Committee (TAC) and approved on June 12 by ESA's Director of Science and Robotic Exploration (Prof. Alvaro Gimenez), has been released and the observers have been informed.
  • XSPEC 12.8.2 Released (03 Jul 2014)
    Updated July 2, 2014. The code underlying the NEI models has been rewritten to accommodate the AtomDB 3.0 files, new models added, other changes ...
  • Skyviewer 1.0.1 released (3 Jul 2014)
    A new version of the skyviewer tool has been released. This version has been built against libQGLViewer 2.5.1 and HEALPix 3.1.1.
  • HEASoft 6.16 released (03 Jul 2014)
    Released July 2, 2014; updates to NuSTAR mission software (nustardas v. 1.4.1); support for the 64-bit architecture on Mac OS X; other changes...
  • Suzaku CALDB updated (01 Jul 2014)
    The Suzaku CALDB has been updated for the XIS (update version 20140701) ...
  • NuSTAR CALDB Update (01 Jul 2014)
    The NuSTAR CALibration DataBase was updated on July 1, 2014 (CALDB version 20140414).
  • Swift CALDB Data updated (30 Jun 2014)
    The Swift Caldb has been updated for the XRT (update version 20140610)...
  • Call for U.S. Scientists to serve on the ATHENA Science Study Team (30 Jun 2014)
    NASA is now soliciting applications and nominations for individuals affiliated with US institutions to participate in the ESA Science Study Team for the "Advanced Telescope for High-ENergy Astrophysics" (ATHENA)... Applications are due Monday, July 7, 2014 at 5 pm local time.
  • WMAP IDL Software Release (30 Jun 2014)
    A new procedure was released to calculate the effective center frequency of each WMAP band for a given spectral index.
  • The Million Quasars Catalog (30 Jun 2014)
    The latest version (v3.9, 30 June 2014) of the MILLIQUAS Catalog (Eric Flesch 2009 - 2014) containing more than one million (1,262,723 to be exact) likely quasars is now available in Browse and Xamin.
  • ESA's Athena Mission to Study the Hot and Energetic Universe (27 Jun 2014)
    ESA has selected the Athena advanced telescope for high-energy astrophysics as its second 'Large-class' science mission. The observatory will use a large X-ray telescope to study the hot and energetic Universe. Athena takes the 'L2' slot in ESA's Cosmic Vision 2015-2025 plan, with launch foreseen to occur in 2028.
  • Alpha Persei Open Cluster XMM-Newton X-Ray Source Catalog (27 Jun 2014)
    This catalog listing the X-ray properties of 102 X-ray sources sources (including 39 likely cluster members) detected by XMM-Newton towards part of the Alpha Per Cluster (Pillitteri et al. 2013, AJ, 145, 143) is now available in Browse and Xamin.
  • COSPAR Announces its 2014 Award Winners (26 Jun 2014)
    Honorees include David McComas of SRI and Jean-Loup Puget of IAS (winners of the Space Science Award), Carlé McGetchin Piters of Brown University (winner of the International Cooperation Medal), Mikhail Marov of the Vernadsky Institute (winner of the William Nordberg Medal), and Eugene Churazov of the Max-Planck Institute for Astrophysics (winner of the Harrie Massey Award).
  • ChIcAGO Survey Chandra X-Ray Source Catalog (25 Jun 2014)
    This catalog listing the X-ray properties of 253 Chandra point sources detected by Chandra within 3 arcmins of 93 unidentified ASCA Galactic Plane Survey sources in the ChIcAGO Survey (Anderson et al. 2014, ApJS, 212, 13) is now available in Browse and Xamin.
  • Mysterious X-ray Signal in Galaxy Clusters Intrigues Astronomers (25 Jun 2014)
    A mysterious X-ray signal has been found in a detailed study (Bulbul et al. 2014, ApJ, 789, 13) of galaxy clusters using the Chandra X-ray Observatory and XMM-Newton. One intriguing possibility is that the X-rays are produced by the decay of sterile neutrinos, a type of particle that has been proposed as a candidate for dark matter.
  • CALDB initialization file updated (24 Jun 2014)
    The caldb setup and initialization files (caldbinit.*) have been updated so that they no longer overwrite the $CALDB, $CALDBCONFIG and $CALDBALIAS environment variables if they are already defined. Note that first-time installers of the CALDB will need to edit the caldbinit.csh (c-shell variants) or caldbinit.sh (bash-variants) to properly define these environment variables to point to their local CALDB installation.
  • Fermi Cycle 7 Stage-I Proposal Selections (24 Jun 2014)
    NASA Headquarters has completed the stage-I selection process for the Fermi Cycle-7 Guest Investigator program. A list of the proposal titles, abstracts and PIs is now posted on this web site (pdf file).
  • Selected Hickson Compact Groups Chandra X-Ray Point Source Catalog (23 Jun 2014)
    This catalog listing the X-ray properties of 1,049 point source detections made by Chandra in the fields of 9 HCGs (Tzanavaris et al. 2014, ApJS, 212, 9) is now available in Browse and Xamin.
  • Swiftly Moving Gas Streamer Eclipses Supermassive Black Hole in NGC 5548 (20 Jun 2014)
    An international team of astronomers, using data from Hubble, Swift, NuSTAR, Chandra, XMM-Newton and INTEGRAL, has detected a stream of gas flowing rapidly outward from the SMBH at the heart of the galaxy NGC 5548, blocking 90% of its emitted X-rays. This behavior may provide new insights into how SMBHs interact with their host galaxies.
  • NASA's Swift Satellite Tallies Water Production of Mars-bound Comet (19 Jun 2014)
    In late May, NASA's Swift satellite imaged comet Siding Spring, which will brush astonishingly close to Mars later this year. These optical and ultraviolet observations are the first to reveal how rapidly the comet is producing water and allow astronomers to better estimate its size.
  • Updated IRAM Plateau de Bure Interferometer Observation Log (19 Jun 2014)
    The latest version of the IRAM PdBI observing log (Dan et al. 1991-2014, IRAM Newsletters) containing 17,748 observations completed through March 31, 2013 is now available in Browse and Xamin.
  • CFITSIO Version 3.37 released (11 Jun 2014)
    Version 3.37 released June 3; support reading bzip2 compressed FITS files, other changes...
  • Swift X-Ray Telescope Returns to Normal Observing (10 Jun 2014)
    J.A. Kennea and D.N. Burrows (PSU) report on behalf of the Swift/XRT team that, at 17:58UT on June 10th, 2014, Swift's XRT was commanded into Auto State, returning it to a normal observing setup.
  • Updated tuned HXD/PIN NXB files for Suzaku observations since 2012 August (10 Jun 2014)
    Version 2.2 NXB files are more accurate than Version 2.0 files for observations since 2012 August.
  • Swift CALDB updated (09 Jun 2014)
    The Swift Caldb has been updated for the SC (update version 20140605)...
  • Update on Swift X-ray Telescope Status (06 Jun 2014)
    "The Swift XRT instrument resumed observations in a somewhat degraded mode while we continue to investigate the underlying anomaly. The intention is to remain in this mode at least through the end of Monday June 9th. The XRT is now operating in a special calibration mode that was used occasionally in the first several years of operations in which it is being manually commanded for each observation, through commands embedded in the uploaded spacecraft timeline."
  • XRT Operations Update (05 Jun 2014)
    David Burrows and Jamie Kennea, on behalf of the XRT team, report: At 00:23 UT on June 4, 2014, the Swift XRT instrument rebooted and since then has not been operating normally. It is currently in MANUAL State and is not collecting science data while we run tests to debug and fix the problem. In the process of these tests, some data are being collected. PC mode data collected in this configuration are not properly calibrated and should not be used for anything but source positions. PC mode spectral calibration will be compromised until bias maps can once again be taken. WT mode data collected during this period appear to be usable.
  • Fermi LAT CALDB update (05 Jun 2014)
    The HEASARC CALDB for the Fermi LAT has been updated to version v9r33p0_20140604...
  • XSPEC 12.8.1p Patch Released (05 Jun 2014)
    Updated June 5, 2014. Bug fix for the pstat statistic ...
  • Fermi Science Analysis Environment Updated (04 Jun 2014)
    The FSSC is pleased to announce the availability of a new version of the Fermi Science Tools (v9r33p0), released on June 3. This version includes support for the CALDB, plotting in the non-ROOT version of the tools and a new tool gtburst. Details can be found here. The LAT team has released an updated model of Galactic diffuse emission (gll_iem_v05_rev1.fit), and made corresponding updates to the photon data. All users of LAT data should update their analysis to use the new model
  • Black Hole "Batteries" Keep Blazars Going and Going (03 Jun 2014)
    Astronomers studying two classes of blazars - BL Lacs and FSRQs - monitored by the Fermi Gamma-ray Space Telescope have found evidence that they represent different sides of the same cosmic coin. By unraveling how these objects are distributed throughout the universe, Ajello et al. (2014, Summer AAS Mtg) suggest that the apparently distinctive properties defining each class likely reflect a change in the way the galaxies extract energy from their central black holes.
  • Chandra Helps Explain 'Red and Dead Galaxies' (31 May 2014)
    NASA's Chandra X-ray Observatory has shed new light on the mystery of why giant elliptical galaxies have few, if any, young stars. This new evidence, presented in Werner et al. (2014, MNRAS, 439, 2291), highlights the important role that supermassive black holes play in the evolution of their host galaxies.
  • 10th INTEGRAL Workshop Abstract Deadline Approaches (29 May 2014)
    This is a reminder that abstracts are due on May 31 for the 10th INTEGRAL Workshop "A Synergistic View of the High Energy Sky" to be held September 15-19, 2014 in Annapolis, MD, USA. Please visit the conference website for details of abstract submission and registration.
  • Carina Nebula Complex Gum 31 Chandra Point Source Catalog (29 May 2014)
    This catalog listing the X-ray and infrared properties of 679 point source detections made by Chandra in the Gum 31/NGC 3324 region of Carina (Preibisch et al. et al. 2014, A&A, 564, A120) is now available in Browse and Xamin.
  • Suzaku CALDB updated (23 May 2014)
    The Suzaku CALDB has been updated for the XIS (update version 20140520) ...
  • XSPEC 12.8.1n,o Patches Released (23 May 2014)
    Updated May 20, 2014. Fix to MCMC analysis using the Goodman-Weare algorithm, and cleared up pstat/pgstat confusion ...
  • Fermi and Radio Observations of Violent Gamma-Ray Outbursts Near Supermassive Black Holes (22 May 2014)
    These observations allow the origin of gamma-ray flares in the nuclear regions of active galaxies to be localized. Fuhrmann et al. (2014, MNRAS, 441, 1899) place the emission site of these flares at parsec-scale distances outside of the broad-line region.
  • Swift is Highly Ranked by the 2014 Senior Review (22 May 2014)
    The Astrophysics Division's Senior Review in March and April this year ranked Swift first among the nine operating missions that were considered by its panel: "Swift continues to provide unique and exciting science both as stand-alone results and as part of multi-wavelength campaigns". Swift has been approved to continue operations through 2018 (subject to the 2016 Senior Review).
  • NuSTAR is Highly Ranked by the 2014 Senior Review (22 May 2014)
    The Astrophysics Division's Senior Review in March and April this year ranked NuSTAR second among the nine operating missions that were considered by its panel. NuSTAR has been approved to continue operations through 2018 (subject to the 2016 Senior Review) and will have a Guest Observer Program, with GO observations starting in 2015.
  • SDSS Quasar Catalog (10th Data Release: DR10Q) (22 May 2014)
    The SDSS DR10Q Catalog listing the X-ray, UV, optical, IR and radio properties of 166,583 quasars identified in the Baryon Oscillation Spectroscopic Survey (BOSS) of the SDSS-III via visual inspection of their spectra (Paris et al. 2014, A&A, 563, A54) is now available in Browse and Xamin
  • Swift Ranks First at the 2014 Senior Review (20 May 2014)
    Every two years the NASA Science Mission Directorate (SMD) conducts comparative reviews of operating missions. A Senior Review panel is convened to evaluate the performance of each mission, including its scientific merit, technical status, and cost efficiency. Swift was ranked first among the nine operating missions in its panel. The Senior Review overall assessment states that "Swift continues to provide unique and exciting science both as stand-alone results and as part of multi-wavelength campaigns. The multitude of science produced with Swift addresses many of the themes and objectives of NASA and Decadal Surveys." The Swift mission is slated to continue through 2018, with the last two years to be reviewed again in 2016.
  • Swift CALDB Data updated (20 May 2014)
    The Swift Caldb has been updated for the SC (update version 20140416)...
  • Mark Your Calendars: "Swift: 10 Years Of Discovery" Conference Announced (19 May 2014)
    The Swift project has announced the dates for this conference (to be held in Rome), which will highlight key science results from the first 10 years of Swift operations, as December 2-5, 2014. More information will be available in early June.
  • Results of 2014 NASA SMD Astrophysics Senior Review of Operating Missions (19 May 2014)
    The Astrophysics Division held the 2014 Senior Review in March and April this year. Three panel were convened to review a) Hubble, b) Chandra, and c) the rest of the operating missions. The panel reports and the NASA response document for the 2014 Senior Review are now available.
  • Congratulations to Dr. Fiona Harrison! (09 May 2014)
    Fiona Harrison, the NuSTAR Principal Invesigator and the Benjamin M. Rosen Professor of Physics and Astronomy in the Space Radiation Lab at Caltech, has just been elected to the National Academy Of Sciences.
  • 4th NuSTAR Public Data Release (07 May 2014)
    163 new NuSTAR data sets from the first 18 months of observations were released to the public NuSTAR archive on May 7th. NuSTAR data are accessible via the usual HEASARC archive interfaces, i.e., Xamin and Browse, by querying the NuSTAR master table (numaster). NuSTAR data can also be accessed from the HEASARC FTP site.
  • Large Circular Polarization in the Afterglow of GRB 121024A (01 May 2014)
    A new study published in the journal Nature reports for the first time a high degree of circular polarization in the afterglow of a GRB. Swift detected GRB 121024A and rapidly discovered the afterglow in X-rays and optical light. Based on the initial brightness of the optical afterglow, an international team of astronomers determined the optical polarization using the Very Large Telescope. Current theories for afterglow emission all agree that there should be no circular polarization in visible light. The results are therefore surprising, and raise questions about our understanding of afterglow emission and particle acceleration in relativistic shocks..
  • SkyView V3.1.4: GALEX update, Memory fix (30 Apr 2014)
    A user (thanks Steve U!) brought to our attention a problem with the GALEX survey in SkyView. SkyView uses the GALEX archive at MAST and only retrieves files when a user first requests data in a region. We keep files … Continue reading
  • SDSS Stripe 82 XMM Source Catalog (22 Apr 2014)
    The SDSS Stripe 82 XMM Source Catalog listing the X-ray, UV, optical, IR and radio properties of 2,358 X-ray detections made by XMM-Newton (LaMassa et al. 2013, MNRAS, 436, 3581) is now available in Browse and Xamin, as is the list from the same paper of 1,146 Chandra detections in the same Stripe 82 field.
  • Ritter Catalog of Cataclysmic Variables, Version 7.21 (21 Apr 2014)
    The latest (7.21: March-2014) versions of the Cataclysmic Binaries Catalog, the Low-Mass X-ray Binaries Catalog and the Binaries Related to CVs Catalog (Ritter & Kolb 2003-2014) are all now available in Browse and in Xamin.
  • Mark Your Calendars: 15 Years of Chandra Symposium Announced (10 Apr 2014)
    The Chandra Science Center has announced the dates for this symposium (to be held in Boston) which will highlight key science results from the first 15 years of Chandra operations as November 18-21, 2014. More information will be available shortly.
  • 2014 Einstein Postdoctoral Fellows Chosen (04 Apr 2014)
    NASA has announced the selection of the 2014 Einstein Fellows who will conduct research related to NASA's Physics of the Cosmos (PCOS) program, which aims to expand our knowledge of the origin, evolution, and fate of the Universe. The PCOS Program consists of a suite of operating science missions and possible future missions that focus on specific aspects of these questions.
  • Fermi Data Tantalize With New Clues To Dark Matter (03 Apr 2014)
    A new study of gamma-ray light from the center of our galaxy makes the strongest case to date that some of this emission may arise from dark matter. Using publically available Fermi data, researchers have developed new maps showing that the galactic center produces more high-energy gamma rays than can be explained by known sources and that this excess emission is consistent with some forms of dark matter.
  • NICER Critical Design Review (03 Apr 2014)
    NICER's next step towards launch, the Critical Design Review, is planned for September 2014. NICER remains on-track for launch on the SpaceX-12 ISS resupply flight currently scheduled for August 2016.
  • Upcoming NICER Presentations Announced (03 Apr 2014)
    There will be an overview presentation on the NICER mission design at the SPIE "Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray" conference in Montreal in June, 2014, and NICER science will be the subject of a Special Session at the High-Energy Astrophysics Division (HEAD) meeting in Chicago in August, 2014.
  • Suzaku Cycle 9 Review Results E-mailed (31 Mar 2014)
    PIs of Suzaku Cycle 9 proposals submitted to the US have been notified via e-mail.
  • XMM-Newton Optical Monitor Serendipitous UV Survey Source Catalog, v2.0 (31 Mar 2014)
    The new version of the XMM OM-SUSS Catalog listing the optical and UV properties of 5,595,331 source detections made by the XMM-Newton OM (v1.0 is described in Page et al. 2012, MNRAS, 426, 903) is now available in Browse and Xamin, as is the associated list of 6,604 XMM observations in which these sources were found.
  • Forward to Phase C (31 Mar 2014)
    NICER's engineers and scientists have successfully passed several major project milestones, including a Preliminary Design Review by an independent team of experts, an initial Payload Safety Review by an International Space Station (ISS) panel, and a Confirmation Review at NASA HQ. NICER is now in Phase C
  • Chandra CALDB 4.6.1 installed at the HEASARC (26 Mar 2014)
    CalDB 4.6.1 is now installed and available at the HEASARC. Chandra 4.6.1 was released on March 26, 2014. Note that this release requires CIAO 4.3 or higher...
  • Release 3.1.3: SkyView, DS9, Aladin and SAMP (24 Mar 2014)
    For some while we’ve supported the Virtual Observatory Simple Application Messaging Protocol (SAMP) for SkyView when you are using the jar file. The idea is that you can run a command like: java -jar skyview.jar position=3c273 survey=dss samp=true and any … Continue reading
  • XSPEC 12.8.1m Patch Released (21 Mar 2014)
    Updated March 21, 2014. Inaccuracy in the gabs model fixed ...
  • BICEP2 detects B-mode Polarization at Degree Angular Scales (18 Mar 2014)
    The BICEP2 CMB polarimeter experiment designed "to search for the signal of inflationary gravitational waves in the B-mode power spectrum around l = 80" has indeed found such a signal "inconsistent with the null hypothesis at a significance of > 5 sigma" (BICEP2 Collab. arXiv:1403.3985), as reported in many news articles today.
  • NASA's Swift Catches Two High Redshift GRBs in a Week (13 Mar 2014)
    The past week was a fortunate week for the Swift satellite, which discovered two of the most distant Gamma-ray Bursts (GRBs) ever seen. Ground-based spectroscopic observations of the long duration GRB 140304A and GRB 140311A found redshifts of z=5.28 and z=4.95, corresponding to distances of 12.55 and 12.45 billion light-years. The two GRBs happened when the Universe was only about 8% of its present age. Thanks to their bright afterglows, GRBs can be detected up to high redshifts, providing a unique probe of the early Universe. However, such distant events are rare, and Swift has found them at a rate of only 1 or 2 per year. A larger population of such objects will provide a rich legacy to trace the evolution of star formation, reionization, and metallicity in the early Universe.
  • XMM-Newton reveals a candidate period for the spin of RX J1605.3+3249 (13 Mar 2014)
    The "Magnificent Seven" is a group of thermal X-ray emitting isolated neutron stars whose properties are closer to magnetars than to classical rotationally-powered pulsars. To date, rotation periods have been determined for all but RX J1605+3249. Pires et al. (2014, A&A, 563, A50) report the successful detection by XMM of its pulsed emission, a period of 3.38 sec, and evidence of a spindown that implies a dipole field of about 7 x 1013G.
  • Herschel Stripe 82 Survey (HerS) Source Catalog (11 Mar 2014)
    The catalog of 32,815 sources detected by Herschel SPIRE at 250 um in 79 square degrees along the SDSS Stripe 82 (from Viero et al. 2014, ApJS, 210, 22) is now available in Browse and Xamin.
  • Fermi LAT First Gamma-Ray Burst Catalog (11 Mar 2014)
    The Fermi Large Area Telescope First Gamma-Ray Burst Catalog (Ackermann et al., 2013, ApJS, 209, 11) of 35 GRBs detected between August 2008 and July 2011 is now available in Browse and Xamin.
  • XMM-Newton OM Object Catalog (Version 2) (08 Mar 2014)
    The new version of the XMM OMCat, the Catalog of Serendipitous Sources detected with the XMM-Newton Optical Monitor (Kuntz et al. 2008, PASP, 120, 740), is now available in Browse and Xamin.
  • Chandra and XMM-Newton Provide Direct Measurement of Distant Black Hole's Spin (05 Mar 2014)
    Reis et al. (2014, Nature, in press) have used the Chandra and XMM-Newton observatories to show that the supermassive black hole in RX J1131-1231, a gravitationally lensed quasar at a redshift of 0.658, is spinning extremely rapidly. This first direct measurement of the spin of such a distant black hole is an important advance for understanding how black holes grow over time.
  • PIMMS updated to Version 4.7 (05 Mar 2014)
    Includes effective area curves for MAXI SSC and GSC all-sky monitor instrument, other changes...
  • SkyView Version 3.1.1: New GOODS Surveys (04 Mar 2014)
    We have just released SkyView Version 3.1.1 which has a number of new surveys in the north and south GOODS regions. With this release SkyView includes GOODS data from the following Space Observatories: Chandra ACIS Hubble ACS Hubble NICMOS Spitzer … Continue reading
  • XMM-Newton Slew Survey Source Catalogs (Version 1.6) (01 Mar 2014)
    The updated versions of the XMM Slew Survey "Clean" and "Full" Source Catalogs are now available in Browse and Xamin.
  • IRAS Point Source Catalog Redshift Catalog (27 Feb 2014)
    The PSCz catalog (the 'short version') of redshifts and other information for almost all galaxies brighter than 0.6 Jy at 60 micron in the unobscured 84% of the sky, from Saunders et al. (2000, MNRAS, 317, 55), is now available in Browse and Xamin.
  • Suzaku Cycle 9 Target List Available (26 Feb 2014)
    The list of accepted Suzaku AO-9 targets is now available.
  • Second GBM Catalog of Gamma-Ray Bursts Available at the HEASARC (25 Feb 2014)
    The Fermi Science Support Center and the GBM Team are pleased to announce the availability of the second GBM catalog of Gamma-Ray Bursts (GRBs) in the HEASARC Browse and Xamin interfaces. The catalog will soon be published in the Astrophysical Journal Supplement.
  • 12th INTEGRAL Announcement of Opportunity (24 Feb 2014)
    ESA Director of Science and Robotic Exploration (Prof. Alvaro Gimenez) has released the 12th Announcement of Opportunity for observing proposals with INTEGRAL. The deadline for proposal submission is April 4, 2014. Additional information can be found on the ESA INTEGRAL website and on the "Proposals and Tools" page of the NASA INTEGRAL GOF.
  • Massive Young Star-Forming Complex Study in IR & X-Rays (MYStIX) Probable Complex Members (23 Feb 2014)
    The MYStIX catalog of 31,549 likely young stars located in 20 nearby massive star-formation regions, from Broos et al. (2013, ApJS, 209, 32), is now available in Browse and Xamin.
  • With A Deadly Embrace, 'Spidery' Pulsars Consume Their Mates (21 Feb 2014)
    Using data from NASA's Fermi Gamma-ray Space Telescope, NRAO's Robert C. Byrd Green Bank Telescope, optical telescopes and also high-powered computer clusters, astronomers are studying "black widow" and "redback" pulsars in close binary systems which are in the process of "devouring" their companions. Watch the video.
  • The Million Quasars Catalog (21 Feb 2014)
    The latest version (v3.8, 16 February 2014) of the MILLIQUAS Catalog (Eric Flesch 2009-2014) containing more than one million (1,253,131 to be exact) likely quasars is now available in Browse and Xamin.
  • RXTE Reveals the Cloudy Cores of Active Galaxies (19 Feb 2014)
    Using data from NASA's Rossi X-ray Timing Explorer (RXTE), an international team (Markowitz et al. 2014, MNRAS, in press) has uncovered a dozen instances where X-ray signals from active galaxies dimmed as a result of a cloud of gas moving across our line of sight.
  • Suzaku/HXD Also Operational (19 Feb 2014)
    The Suzaku team has returned the HXD instrument to normal operation. Suzaku is now carrying out GO observations using both the XIS and the HXD.
  • NASA's NuSTAR Untangles Mystery of How Stars Explode (19 Feb 2014)
    NuSTAR observations of the supernova remnant Cas A is helping to unravel one of the biggest mysteries in astronomy, how massive stars explode.
  • Chandra Sees Runaway Pulsar Firing an Extraordinary Jet (18 Feb 2014)
    NASA's Chandra X-ray Observatory has seen a fast-moving pulsar escaping from a supernova remnant while spewing out a record-breaking jet - the longest of any object in the Milky Way galaxy - of high-energy particles. The peculiar behavior of the pulsar, known as IGR J11014-6103, can likely be traced back to its birth in the collapse and subsequent explosion of a massive star.
  • Globular Cluster Systems in Galaxies Catalog (12 Feb 2014)
    This catalog containing data on the globular cluster systems of 422 galaxies, from Harris et al. (2013, ApJ, 772, 82), is now available in Browse and Xamin.
  • Swift CALDB Data updated (12 Feb 2014)
    The Swift Caldb has been updated for the SC (update version 20140211)...
  • A New Catalog of Globular Clusters in the Milky Way (11 Feb 2014)
    The latest version of the McMaster catalog containing data on 157 globular clusters in our galaxy, from Harris (1996, AJ, 112, 1487 and 2010, eprint arXiv 1012.3224), is now available in Browse and Xamin.
  • Milky Way Star Clusters Catalog (11 Feb 2014)
    The MWSC catalog containing data on 3,006 stellar clusters in our galaxy, from Kharchenko et al. (2012, A&A, 543, A156; 2013, A&A, 558, A53), is now available in Browse and Xamin.
  • U.S. XMM-Newton GOF Image Gallery Launched (07 Feb 2014)
    Science images created using ESAS tasks in the SAS
  • Massive Young Star-Forming Complex Study in IR & X-Rays (MYStIX) IR-Excess Source List (07 Feb 2014)
    The MYStIX IRES source catalog for 18 star-forming complexes containing 20,719 sources, 8,686 of them probable complex members, from Povich et al. (2013, ApJS, 209, 31), is now available in Browse and Xamin.
  • 3rd NuSTAR Public Data Release (05 Feb 2014)
    104 New NuSTAR data sets from the first year of observations were released to the public NuSTAR archive on February 5th. NuSTAR data are accessible via the usual HEASARC archive interfaces, i.e., Xamin and Browse, by querying the NuSTAR master table (numaster). NuSTAR data can also be accessed from the HEASARC FTP site.
  • XSPEC 12.8.1k Patch Released (5 Feb 2014)
    Updated February 4, 2014. Fix for reading table model files.
  • Massive Young Star-Forming Complex Study in IR & X-Rays (MYStIX) Mid-IR Source List (04 Feb 2014)
    The MYStIX Spitzer IRAC source list for 10 star-forming complexes containing 783,337 mid-IR sources (Kuhn et al. 2013, ApJS, 209, 29) is now available in Browse and Xamin.
  • Suzaku Observations Resumed (4 Feb 2014)
    The Suzaku team has returned the attitude control system and the XIS instrument to normal mode, and re-started GO observations. It will probably take another several weeks to resume observations using the HXD.
  • Suzaku CALDB updated (04 Feb 2014)
    The Suzaku CALDB has been updated for the XIS (update version 20140203) ...
  • Swift CALDB Data updated (03 Feb 2014)
    The Swift Caldb has been updated for the XRT (update version 20140120)...
  • Massive Young Star-Forming Complex Study in IR & X-Rays (MYStIX) X-Ray Source List (31 Jan 2014)
    The MYStIX catalog of Chandra X-ray sources in 10 star-forming complexes containing 11,315 sources (Kuhn et al. 2013, ApJS, 209, 27) is now available in Browse and Xamin.
  • Complete Chandra Galactic Bulge Survey X-Ray Point Source Catalog (31 Jan 2014)
    The final version of this catalog containing 1658 Chandra X-ray sources in 12 sq. deg of the Galactic Bulge (Jonker et al. 2011, ApJS, 194, 18 and 2014, ApJS, 210, 18) is now available in Browse and Xamin.
  • NuSTARDAS v1.3.1 Released (31 Jan 2014)
    Released January 28, 2014, NuSTARDAS v1.3.1 was included in the HEASOFT 6.15.1 release. NuSTARDAS v1.3.1 users should make sure to use version 20131223 of the NuSTAR caldb. An updated version of the NuSTARDAS Users Guide (v.1.5) is also available here.
  • HEASoft 6.15.1 released (30 Jan 2014)
    Released January 28, 2014; updates to NuSTAR mission software (nustardas v. 1.3.1) and the Swift XRT analysis sotware, other changes. Note that nustardas v 1.3.1 requires version 20131007 or later of the NuSTAR CALDB.
  • Updated IRAM Pico Veleta 30-m Telescope Observation Log (29 Jan 2014)
    The latest version of the IRAM 30-m telescope observing log (Dan et al. 1991-2014, IRAM Newsletters) containing 216,770 observations completed through 2012 Dec 31 as well as the latest version of the IRAM PdB Interferometer observing log containing 16,930 observations through 2012 Sep 30 are now available in Browse and Xamin.
  • NASA Spacecraft Take Aim At Nearby Supernova (24 Jan 2014)
    An exceptionally close stellar explosion discovered on Jan. 21 has become the focus of observatories around and above the globe, including several NASA spacecraft. The blast, designated SN 2014J, occurred in the galaxy M82 and lies only about 12 million light-years away. This makes it the nearest optical supernova in two decades and potentially the closest type Ia supernova to occur during the life of currently operating space missions.
  • Reminder: Upcoming Deadline for the COSPAR 2014 Assembly and Scientific Events (24 Jan 2014)
    Abstracts for COSPAR 2014 to be held August 2 to 10 in Moscow must be submitted by February 14th.
  • South Polar Telescope Sunyaev-Zeldovich Survey Point Source Catalog (23 Jan 2014)
    This catalog of 1,545 mm-wave sources detected at 95, 150 and/or 220 GHz (from Mocanu et al. 2013, ApJ, 779, 61) is now available in Browse and Xamin.
  • Suzaku Observations Interrupted (23 Jan 2014)
    Secular degradation of on-board batteries led to a safehold on January 16. The team in Japan is in the process of restoring normal operation.
  • Planck-ATCA Co-eval Observations (PACO) Project Bright Sample Catalog (17 Jan 2014)
    This catalog of 1,004 observations at 4.5-40 GHz of 180 AT20G radio sources taken from the PACO Bright Sample (Massardi et al. 2011, MNRAS, 415, 1597) as well as the catalog of 674 similar observations of 152 AT20G sources from the PACO Faint Sample (Bonavera et al. 2011, MNRAS, 416, 559) are now available in Browse and Xamin.
  • NuSTAR CALDB Update (17 Jan 2014)
    The NuSTAR CALibration DataBase was updated on January 17, 2014 (CALDB version 20131223). Because of the large size of some calibration files, for NuSTAR data processing and analysis we recommend downloading the NuSTAR CALDB and installing it locally, rather than accessing the NuSTAR CALDB at the HEASARC remotely.
  • Nature Letter: MWC 656, A Be-type Star with a Black-Hole Companion (16 Jan 2014)
    Casares et al. (2014, Nature, 505, 378) report observations of an accretion disk line mirroring the orbit of the Be star MWC 656, the candidate counterpart of the γ-ray source AGL J2241+4454, which indicate that a black hole of 3.8 to 6.9 solar masses orbits this star. The non-detection of X-rays suggests there is a radiatively inefficient accretion flow onto the black hole.
  • VLA Extended-Chandra Deep Field-South Source Classification Catalog (15 Jan 2014)
    This catalog of classifications of 883 radio sources detected at 1.4 GHz by the VLA in a deep survey of the E-CDF-S field (from Bonzini et al. 2013, MNRAS, 436, 3759) is now available in Browse and Xamin.
  • Suzaku CALDB updated (13 Jan 2014)
    The Suzaku CALDB has been updated for the XIS (update version 20131231) ...
  • Swift CALDB Data updated (13 Jan 2014)
    The Swift Caldb has been updated for the XRT (update version 20131220)...
  • Dead Star and Distant Black Holes Dazzle in X-Rays (09 Jan 2014)
    Two new views from NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, showcase the telescope's talent for spying objects near and far. One image shows the energized remains of a dead star, a structure nicknamed the "Hand of God" after its resemblance to a hand. Another image shows distant black holes buried in blankets of dust.
  • Death By Black Hole In Small Galaxy? (09 Jan 2014)
    A bright, long duration flare may be the first recorded event of a black hole destroying a star in a dwarf galaxy. The evidence comes from two independent studies (Maksym et al. (2013) and Donato et al. (2013)) using data from the Chandra, EUVE, and XMM-Newton observatories.
  • NASA's Swift Catches X-ray Action at Milky Way's Center (08 Jan 2014)
    Recent observations by NASA's Swift spacecraft have provided scientists a unique glimpse into the activity at the center of our galaxy and led to the discovery of a rare celestial entity that may help them test predictions of Albert Einstein's theory of general relativity.
  • NASA's Fermi Makes First Gamma-ray Study of a Gravitational Lens (06 Jan 2014)
    An international team of astronomers, using NASA's Fermi observatory, has made the first-ever gamma-ray measurements of a gravitational lens, a kind of natural telescope formed when a rare cosmic alignment allows the gravity of a massive object to bend and amplify light from a more distant source.
  • The Year in Pictures According to HEAPOW (31 Dec 2013)
    The High Energy Astrophysics Picture of the Week this week has a collage of the 52 pictures from 2013 which illustrates the wonderful richness and amazing phenomena of the high-energy universe.
  • 10th INTEGRAL Workshop - A Synergistic View of the High-Energy Sky (30 Dec 2013)
    The 10th INTEGRAL Workshop, `A Synergistic View of the High-Energy Sky', will be held in Annapolis, MD, USA, from September 15 to 19, 2014.
  • Swift Cycle 10 Results (20 Dec 2013)
    Swift Cycle 10 Recommended Targets and Proposals have been posted.
  • Australia Telescope 20-GHz (AT20G) High-Angular Resolution Catalog (18 Dec 2013)
    This catalog of 6-km visibilities of 5,890 radio sources detected at 20 GHz by the ATCA in the entire southern hemisphere in the AT20G Survey (from Chhetri et al. 2013, MNRAS, 434, 956) is now available in Browse and Xamin.
  • XSPEC 12.8.1i,j Patches Released (18 Dec 2013)
    Updated December 18, 2013. When attempting to change the AtomDB version used by the Apec models, the xset APECROOT < version number > command only works when called BEFORE the first Apec model is loaded. Once an Apec model is loaded, the AtomDB version becomes fixed regardless of future adjustments to xset APECROOT. Our thanks to Ming Sun for pointing this out. Report added on Dec 18, 2013. ...
  • Swift CALDB Data updated (13 Dec 2013)
    The Swift Caldb has been updated for the SC (update version 20131211)...
  • Giant Metrewave Radio Telescope Herschel-ATLAS/GAMA Equatorial Fields 325-MHz Radio Source Catalog (12 Dec 2013)
    This catalog of 5,263 discrete radio sources detected at 325 MHz by the GMRT in 3 fields from the Herschel-Astrophysical Terahertz Large-Area and Galaxy and Mass Assembly Surveys (from Mauch et al. 2013, MNRAS, 435, 650) is now available in Browse and Xamin.
  • Chandra Cycle 16 Call for Proposals Has Been Released (12 Dec 2013)
    The Chandra X-ray Center is pleased to announce the release of the Chandra Cycle 16 Call for Proposals. The deadline for Cycle 16 proposals to be submitted by is 2014 March 13, 6:00pm EDT.
  • XMM-Newton SAS v13.5.0 Released (12 Dec 2013)
    The latest release of the XMM-Newton Science Analysis Software.
  • COSPAR Press Release: Rare Magnetar Identified (12 Dec 2013)
    A new transient magnetar, 3XMM J186536.6+003317, pulsing in X-rays every 11.56 s is the ninth of its class, It was identified during a COSPAR Capacity Building Workshop for young researchers in developing countries. The magnetar is likely part of a binary star system together with an "anti-magnetar" (a young neutron star with a low magnetic field). This study of Zhou et al. will be published in January in ApJL.
  • XMMAO (XMM-Newton Accepted Targets) Table (09 Dec 2013)
    The latest version of the table of accepted XMM-Newton targets, updated to include AO-13 results, is now available in Browse and Xamin.
  • XMM-Newton AO-13 Results Released (09 Dec 2013)
    The list of XMM-Newton observing proposals accepted by the AO-13 Observing Time Allocation Committee is now available.
  • CFITSIO Version 3.36 released (09 Dec 2013)
    Version 3.36 released December 6; major changes to the compression code for FITS binary tables, other changes...
  • Updated AGILE Catalog of Bright Gamma-Ray Sources and Variability (07 Dec 2013)
    This catalog of results from a variability study of a sample of 54 bright gamma-ray (30 MeV - 50 GeV) sources detected by AGILE. (from Verrecchia et al. 2013, A&A, 558, A137) is now available in Browse and Xamin.
  • INTEGRAL AO-11 Data Rights Proposals approved (03 Dec 2013)
    The ESA Director of Science and Robotic Exploration, Prof. Alvaro Gimenez, has approved the recommendation of the Time Allocation Committee (TAC) for proposals to obtain data rights for targets within approved AO-11 observations.
  • Extension Of Abstract Submission Deadline for Suzaku-MAXI Conference 2014 (03 Dec 2013)
    Due to an ambiguity in the precise time of the deadline, some potential participants tried to submit an abstract on Dec 2, local time (e.g., in the US), after the abstract submission system was already closed. The meeting organizers have re-opened the system, with a new deadline of Dec 5 at 24:00 UT (= Dec 5 19:00 EST = Dec 5 16:00 PST).
  • Do Black Holes Come in Size Medium? (02 Dec 2013)
    In the stockroom of our cosmos, black holes come in size small and large. NASA's NuSTAR is helping to find our more about why medium-sized black holes are missing.
  • ESA News: ESA's New Vision To Study The Invisible Universe (02 Dec 2013)
    The hot and energetic Universe and the search for elusive gravitational waves will be the focus of ESA's next two large science missions. The science theme "the hot and energetic universe" was selected as the 2nd Large-class mission (L2) in ESA's Cosmic Vision science program, expected to be pursued with an advanced X-ray observatory with a launch date in 2028, while the "gravitational Universe" theme was selected as the L3 mission with a planned 2034 launch date.
  • New NuSTAR Public Data Release (26 Nov 2013)
    New NuSTAR data were released to the public NuSTAR archive on November 25. NuSTAR data are accessible via the usual HEASARC archive interfaces, i.e., Xamin and Browse, specifically by querying the NuSTAR master table (numaster). NuSTAR data can also be accessed from the HEASARC FTP site. NuSTAR calibration data are available from the HEASARC CALDB.
  • The Million Quasars Catalog (26 Nov 2013)
    The latest version (v3.7, 26 November 2013) of the MILLIQUAS Catalog (Eric Flesch 2009-2013) containing more than one million (1,273,361 to be exact) likely quasars is now available in Browse and Xamin.
  • Swift CALDB Data updated (26 Nov 2013)
    The Swift Caldb has been updated for the SC (update version 20131106)...
  • NuSTARDAS v1.3.0 Released (25 Nov 2013)
    Released November 25, 2013; NuSTARDAS v1.3.0 was included in the HEASOFT 6.15 release . Note that nustardas v 1.3.0 requires version 20131007 of the NuSTAR CALDB.
  • HEASoft 6.15 released (25 Nov 2013)
    Released November 25, 2013; updates to NuSTAR mission software (nustardas v. 1.3.0), other changes. Note that nustardas v 1.3.0 requires version 20131007 of the NuSTAR CALDB.
  • NuSTAR CALDB Updated (25 Nov 2013)
    The NuSTAR CALibration DataBase was updated on November 25, 2013 to CALDB version 20131007. Because of the large size of some calibration files, for NuSTAR data processing and analysis we recommend downloading the NuSTAR CALDB and installing it locally, rather than accessing the NuSTAR CALDB at the HEASARC remotely.
  • NuSTAR CALDB Update: Version 20131007 (25 Nov 2013)
    The NuSTAR CALibration DataBase was updated on November 25, 2013 (CALDB version 20131007). Because of the large size of some calibration files, for NuSTAR data processing and analysis we recommend downloading the NuSTAR CALDB and installing it locally, rather than accessing the NuSTAR CALDB at the HEASARC remotely.
  • XSPEC 12.8.1f-h Patches Released (22 Nov 2013)
    Updated November 21, 2013. Fixes and enhancements to PyXSPEC and APEC ...
  • Chandra CALDB 4.5.9 installed at the HEASARC (21 Nov 2013)
    CalDB 4.5.9 is now installed and available at the HEASARC. Chandra 4.5.9 was released on November 19, 2013. Note that this release requires CIAO 4.3 or higher...
  • Fermi Cycle-7 Call for proposals has been issued (18 Nov 2013)
    The Fermi Science Support Center is pleased to announce that the call for proposals to participate in the Fermi Cycle-7 Guest Investigator Program has been issued by NASA HQ as an amendment to the 2013 ROSES NRA. Prospective proposers are urged to review these documents as there are several changes to the program relative to past mission cycles.
  • ESA News: Black Hole Boasts Heavyweight Jets (14 Nov 2013)
    Based on XMM-Newton and supporting ATCA radio observations, Diaz Trigo et al. (2013, Nature, in press) have found evidence that the relativistic jets of the stellar-mass black-hole candidate binary system 4U 1630-47 contain high-velocity (2/3 x c) baryonic matter.
  • XSPEC 12.8.1e Released (13 Nov 2013)
    Updated November 7, 2013. Bugfix to eqpair model ...
  • Fermi Pass 7 reprocessed data available (12 Nov 2013)
    Pass 7 data has been reprocessed (P7REP) with updated instrument calibrations which improve the LAT PSF above 3 GeV and provide a new on-orbit PSF ...
  • The RXTE AGN Timing & Spectral Database (07 Nov 2013)
    In this database, provided for the community by the UCSD/CASS X-ray Group (R.E. Rothschild, A.G. Markowitz, E.S. Rivers, and B.A. McKim), systematically-analyzed light curves and spectra for all AGN observed by RXTE during its entire mission are now available. The flux per observation in 4 energy bands and XSPEC-compatible spectral data can be downloaded for any source directly from the website. Information such as long-term average fluxes and the typical ranges in variations of flux or photon index for a given source should be useful in future observing programs.
  • ATCA/ADF-S 20-cm Radio Source Catalog (07 Nov 2013)
    This catalog of 530 discrete radio source components detected by the Australia Telescope Compact Array in deep 20-cm observations of the AKARI Deep Field South (from White et al. 2012, MNRAS, 427, 1830) is now available in Browse and Xamin.
  • Radio-Selected Gamma-Ray Burst Afterglow Catalog (05 Nov 2013)
    This catalog from Chandra and Frail (2012, ApJ, 746, 156) containing information on a sample of 304 GRB afterglows which were observed at radio wavelengths is now available in Browse and Xamin.
  • XMM-Newton/Sloan Digital Sky Survey Galaxy Cluster Survey Catalog (31 Oct 2013)
    This catalog from Takey et al. (2013, A&A, 558, A75) containing information on 530 X-ray selected galaxy clusters and groups with optical confirmation and redshifts from the SDSS is now available in Browse and Xamin, replacing the previous version given in Takey et al.'s earlier study (2011, A&A, 534, A120).
  • Suzaku Study Points to Early Cosmic Seeding (31 Oct 2013)
    A new study based on Suzaku Key Project observations indicates that most of Iron in the Perseus Cluster predates the formation of this cluster.
  • MILLIQUAS - The Million Quasars Catalog (29 Oct 2013)
    The latest version (v3.6, 23 October 2013) of the MILLIQUAS Catalog (Eric Flesch 2009-2013) containing more than one million (1,277,383 to be exact) likely quasars is now available in Browse and Xamin.
  • Fermi LAT CALDB update (28 Oct 2013)
    The CALDB for the Fermi LAT has been updated to version v9r32p5_20131024...
  • New Fermi Gamma-ray Space Telescope Science Tools Release (25 Oct 2013)
    The Fermi Science Support Center is pleased to announce the availability of a new version of the Fermi Science Tools, developed jointly with the Large Area Telescope Collaboration and the Gamma-ray Burst Monitor Team, which include inter alia a new set of tools to analyze moving targets in the Fermi LAT data.
  • Fermi Science Analysis Environment Updated (25 Oct 2013)
    Fermi SAE updated to version v9r32p5 on October 24, 2013. This release includes numerous updates and bug fixes ...
  • NASA News: A Glimpse of the Violent Past of the Milky Way's Giant Black Hole, Sgr A* (25 Oct 2013)
    Using Chandra observations, Clavel et al. (2013, A&A, 558, A32) have found evidence that the normally dim region very close to the supermassive black hole Sgr A* at the center of the Milky Way flared up with at least two luminous outbursts in the past few hundred years. This discovery comes from a new study of rapid variations in the X-ray emission from gas clouds surrounding Sgr A* which the authors show are likely caused by 'light echoes' of these flares.
  • Small Magellanic Cloud XMM-Newton Point Source Catalog (24 Oct 2013)
    This catalog from Sturm et al. (2013, A&A, 558, A3) containing information on 3,053 point and moderately extended X-ray sources detected towards the SMC by XMM-Newton is now available in Browse and Xamin.
  • XSPEC 12.8.1c,d Released (23 Oct 2013)
    Updated October 23, 2013. 12.8.1c adds new features to PyXspec; 12.8.1d fixes a steppar bug ...
  • Herschel Space Observatory Log of Observations (22 Oct 2013)
    This catalog of 37,093 observations made by Herschel during its 4 years of operations berfore the Helium cryogen was exhausted (from the Herschel Science Centre) is now available in Browse and (within half a day) Xamin.
  • XSPEC 12.8.1b Released (30 Sep 2013)
    Updated September 27, 2013. Model syntax bug fixed ...
  • Giant Metrewave Radio Telescope Field I 150-MHz Radio Source Catalog (28 Sep 2013)
    This catalog of 206 discrete radio sources detected by the GMRT in a deep observation performed to characterize the statistical properties of the radio foreground at this frequency (from Ghosh et al. 2012, MNRAS, 426, 3295) is now available in Browse and Xamin.
  • XMM-Newton Large-Scale Structure Optical Counterparts and Redshifts Catalog (26 Sep 2013)
    This catalog from Melnyk et al. (2013, A&A, 557, A81) containing information on optical counterparts and redshifts of 4,206 X-ray sources detected in the XMM-LSS Deep ('2XLSSd') survey is now available in Browse and (within half a day) Xamin.
  • NASA News: Astronomers Uncover a 'Transformer' Pulsar (26 Sep 2013)
    Papitto et al. (2013, Nature, 501, 517), using a fleet of orbiting X-ray telescopes (INTEGRAL, Swift, XMM-Newton and Chandra) and ground-based radio telescopes, have discovered a millisecond pulsar with a dual identity. In a feat that has never before been observed, the star readily shifts back and forth between two mutually exclusive styles of pulsed emission, one in X-rays, the other in radio.
  • GOODS North Field Very Large Array 1.4 GHz Source Catalog (25 Sep 2013)
    This catalog of 1230 discrete radio sources detected by the VLA above a 5-sigma detection threshold of ~20 uJy at phase center in the GOODS-North field (from Morrison et al. 2010, ApJS, 188, 178) is now available in Browse and Xamin.
  • Chandra News: Coma Cluster: Clues to the Growth of the Colossus in Coma (23 Sep 2013)
    A team of astronomers (Sanders et al. 2013, Science, 341, 1365) has discovered enormous arms of hot gas in the Coma cluster of galaxies by using Chandra and XMM-Newton. These features, which span at least half a million light years, provide insight into how the .Coma cluster has grown through mergers of smaller groups and clusters of galaxies to become one of the largest gravitationally-bound structures in the Universe
  • Roma-BZCAT Multi-Frequency Catalog of Blazars (23 Sep 2013)
    This catalog containing information on the multi-frequency properties of 3149 blazars and blazar candidates (from Massaro et al. 2013, A&A, 495, 691) is now available in Browse and Xamin.
  • Einstein Postdoctoral Fellowship Program Now Accepting On-Line Applications (20 Sep 2013)
    The 2014 Einstein Fellowship Call for Proposals has been posted. The deadline for applications is November 7, 2013.
  • Deadline for Swift Cycle 10 Guest Investigator Program Proposals Is Very Near (20 Sep 2013)
    Proposals for the Swift Cycle 10 component of the ROSES-2013 NRA are due no later than 4:30 pm EDT on September 26th. Details on the AO and proposal submission instructions are now available, as well as a list of Cycle 10 FAQs.
  • XMM-Newton Deep Survey in the Chandra Deep Field-South 5-10 keV Source Catalog (20 Sep 2013)
    This catalog containing information on 137 X-ray sources detected by XMM-Newton in the 5-10 keV band in the CDF-S (from Ranalli et al. 2013, A&A, 555, A42) is now available in Browse and Xamin, as well as the companion table of 2-10 keV sources from the same reference.
  • IC 2944/2948 Clusters XMM-Newton X-Ray Source Catalog (19 Sep 2013)
    This catalog containing information on 368 X-ray sources detected by XMM-Newton and their optical/IR counterparts in the young open cluster(s) IC 2944/2948 (from Nazé et al. 2013, A&A, 555, A83) is now available in Browse and (within half a day) Xamin.
  • XMM-Newton SAS v13.0.3 Released (19 Sep 2013)
    The latest release of the XMM-Newton Science Analysis Software.
  • 2nd MAXI Gas Slit Camera High Galactic-Latitude Source Catalog (18 Sep 2013)
    This catalog of 500 X-ray (4-10 keV) sources detected by the MAXI GSC in its first 37 months of operations (from Hiroi et al. 2013, ApJS, 207, 36). which replaces the previous 146-source version based on 7 months of observations, is now available in Browse and Xamin.
  • Suzaku CALDB updated (16 Sep 2013)
    The Suzaku CALDB has been updated for the XIS (update version 20130916) ...
  • Swift CALDB Updated (16 Sep 2013)
    The Swift Caldb has been updated for the SC (update version 20130911).
  • INTEGRAL AO-11 Call for Data Rights Proposals (09 Sep 2013)
    ESA has released the INTEGRAL AO-11 Call for Data Rights Proposals. These proposals are to obtain the data rights for targets within the previously approved AO-11 observing program. Proposals are due 4 October 2013, 14:00 CEST.
  • NuSTAR Catches Black Holes on the Fly (06 Sep 2013)
    NASA's black-hole-hunter spacecraft, the Nuclear Spectroscopic Telescope Array, or NuSTAR, has "bagged" its first 10 supermassive black holes, the first of hundreds expected from the mission over the next two years. NuSTAR, which has a mast the length of a school bus, is the first telescope capable of focusing the highest-energy X-ray light into detailed pictures.
  • WebSpec Updates (05 Sep 2013)
    WebSpec has just been updated, with new XIS responses and backgrounds for Suzaku AO-9, new EPIC responses for XMM-Newton AO-13, and new NuSTAR responses and backgrounds.
  • Proposal Tools Available for Joint NuSTAR-XMM Newton Observing Opportunity (05 Sep 2013)
    Proposal tools (Target Visibility, straylight, and deadtime calculators, along with simulation and software guides) have been made available by the NuSTAR project
  • Suzaku AO-9 Proposals Due on Nov 13, 2013 (3 Sep 2013)
    The AO-9 Call for Proposals has been released. The deadline for US-based observer is 4:30 pm EST on Nov 13, 2013.
  • NASA News: NuSTAR Delivers the "X-Ray Goods" (29 Aug 2013)
    NuSTAR is giving the wider astronomical community a first look at its unique X-ray images of the cosmos. The first batch of data from the black-hole hunting telescope is publicly available today, Aug. 29, via NASA's HEASARC.
  • The NuSTAR Archive Opens (29 Aug 2013)
    The NuSTAR Public Data Archive has officially opened. NuSTAR data are accessible via the usual HEASARC archive interfaces, i.e., Xamin and Browse, specifically by querying the NuSTAR master table (numaster). NuSTAR data can also be accessed from the HEASARC FTP site. NuSTAR calibration data are available from the HEASARC CALDB.
  • NuSTAR CALDB Released (29 Aug 2013)
    The NuSTAR CALibration DataBase (CALDB version 20130509) was released on August 14, 2013. Because of the large size of some calibration files, for NuSTAR data processing and analysis we recommend downloading the NuSTAR CALDB and installing it locally, rather than accessing the NuSTAR CALDB at the HEASARC remotely.
  • Joint NuSTAR-XMM Newton Observing Opportunity (28 Aug 2013)
    XMM-Newton AO13 offers the opportunity to propose for joint observations with NuSTAR
  • NASA XMM-Newton AO-13 Dear Colleague Letter (27 Aug 2013)
    NASA is pleased to call to the attention of members of the U.S. scientific community the release by the European Space Agency (ESA) of the Announcement of Opportunity (AO), "XMM-Newton Call for Observing Proposals", soliciting Guest Observing proposals for the 13th cycle (AO-13) observing program for ESA's X-ray Multi-Mirror Mission (XMM-Newton).
  • XMM-Newton AO-13 Solicitation Released (27 Aug 2013)
    XMM-Newton observing proposals are solicited in response to the Thirteenth Announcement of Opportunity.
  • Chandra CALDB 4.5.8 released (23 Aug 2013)
    CalDB 4.5.8 released 23 August 2013 and installed at the HEASARC on 23 August 2013. Note Caldb 4.5.8 is not compatible with CIAO versions earlier than CIAO 4.3...
  • NASA's Fermi Celebrates Five Years in Space, Enters Extended Mission Phase (21 Aug 2013)
    During its 5-year primary mission, Fermi has given astronomers an increasingly detailed portrait of the universe's most extraordinary phenomena, from giant black holes in the hearts of distant galaxies to thunderstorms on Earth. On Aug. 11, 2013, Fermi entered an extended phase of its mission - a deeper study of the high-energy cosmos.
  • M 31 Central Field Chandra HRI X-Ray Point Source Catalog (20 Aug 2013)
    This catalog containing information on 318 X-ray point sources detected in M 31's central regions by the HRC-I over 13 years of Chandra observations (from Hofmann et al. 2013, A&A, 555, A65) is now available in Browse and Xamin.
  • ARK/RPS Scheduled Downtime for 2013-08-15 Completed (15 Aug 2013)
    The scheduled maintenance for the ARK database has completed, and ARK/RPS is fully operational. If you encounter any issues, please contact the ARK Help Desk.
  • MILLIQUAS - The Million Quasars Catalog (14 Aug 2013)
    The latest version (v3.5, 11 August 2013) of the MILLIQUAS Catalog (Eric Flesch 2009-2013) containing more than one million (1,302,716 to be exact) likely quasars is now available in Browse and Xamin.
  • XSPEC 12.8.1 Released (12 Aug 2013)
    Released August 8, 2013. New models, new statistics, other changes. Part of HEASoft 6.14 release ...
  • VLA SDSS Stripe 82 Survey 1.4-GHz Source Catalog (08 Aug 2013)
    This catalog containing information on 17,969 20-cm sources and their SDSS optical counterparts in 'Stripe 82' (from Hodge et al. 2011, AJ, 142, 3) is now available in Browse and Xamin.
  • HEASoft 6.14 released (08 Aug 2013)
    Released August 7, 2013; new software for the NuSTAR mission and updates to the Swift mission software, other changes...
  • 4th Fermi International Symposium Proceedings Now Available (07 Aug 2013)
    The proceedings of the 4th Fermi Symposium are now available! All submitted papers are compiled in the proceedings, as well as being available on arXiv. Thanks to everyone who participated in making the 4th Fermi Symposium such a success!
  • Lynds 1641 and Iota Ori Regions XMM-Newton X-Ray Source Catalog (07 Aug 2013)
    This catalog containing information on 1060 X-ray sources and 1041 IR counterparts in a portion of the Orion A Cloud (from Pillitteri et al. 2013, ApJ, 768, 99 & 2013, ApJ, 773, 80) is now available in Browse and Xamin.
  • INTEGRAL's Journey Through the High Energy Sky (06 Aug 2013)
    The INTEGRAL workshop "INTEGRAL's Journey Through the High Energy Sky" will be held in Rome 15-18 October, 2013. Abstracts can be submitted until 20 September 2013. Additional information can be found at the above link.
  • Suzaku CALDB updated (02 Aug 2013)
    The Suzaku CALDB has been updated for the XIS (update version 20130724) ...
  • Swift CALDB Updated (02 Aug 2013)
    The Swift Caldb has been updated for the SC (update version 20130715).
  • VLA Subaru/XMM-Newton Deep Field (SXDF) 1.4-GHz Source Catalog (02 Aug 2013)
    This catalog containing information on 505 20-cm sources and their optical counterparts in the SXDF (from Simpson et al. 2006, MNRAS, 372, 741) and the later catalog of optical spectroscopy and redshifts for these sources (Simpson et al. 2012, MNRAS, 421, 3060) are now available in Browse and Xamin.
  • ROSAT/XMM-Newton 13-hr Deep Field Chandra X-Ray Source Catalog (31 Jul 2013)
    This catalog containing 214 Chandra sources in the 13-hr, +38-deg Deep Field observed by both ROSAT and XMM-Newton (from McHardy et al. 2003, MNRAS, 342, 802) is now available in Browse and Xamin.
  • Press Release: Chandra and XMM-Newton See Eclipsing Planet in X-rays for First Time (30 Jul 2013)
    For the first time since exoplanets were discovered almost 20 years ago, X-ray observations have detected an exoplanet passing in front of its parent star. An advantageous alignment of a planet and its parent star in the system HD 189733 enabled Chandra and XMM-Newton to observe a dip in X-ray intensity as the planet transited the star, according to Poppenhaeger et al. (2013, ApJ, in press).
  • All-Wavelength Extended Groth Strip (EGS) International Survey 20-cm (AEGIS20) Fully Identified Sample Counterpart Catalog (29 Jul 2013)
    This catalog containing 511 20-cm sources in part of the EGS and their R-band and IRAC counterparts (from Willner et al. 2012, ApJ, 756, 72) is now available in Browse and Xamin.
  • ROSAT/XMM-Newton 13-hr Deep Field 20-cm VLA Source Catalog (25 Jul 2013)
    This catalog containing 449 20-cm sources in the 13-hr, +38-deg Deep Field observed by both ROSAT and XMM-Newton (from Seymour et al. 2004, MNRAS, 352, 131) is now available in Browse and Xamin.
  • Press Release: Team led by U. Leicester Sets New Record for Cosmic X-Ray Sightings (23 Jul 2013)
    The XMM-Newton Survey Science Center, led by a team from Leicester's Dept. of Physics and Astronomy, used the University's 'ALICE' supercomputer to help them produce a new X-ray catalog, dubbed '3XMM'. This new catalog contains over half a million X-ray source detections, and is the largest catalog of X-ray sources ever produced.
  • XMM-Newton Serendipitous Source Catalog (Version 3XMM-DR4) (23 Jul 2013)
    The updated version of this catalog, now containing 531,261 X-ray source detections (Watson et al. 2013, in preparation), is now available in Browse and Xamin.
  • XMM-Newton Serendipitous Source Catalogue: 3XMM-DR4 Released (23 Jul 2013)
    Latest release of the XMM SSC: 3XMM-DR4
  • XMM-Newton XSA v8.0 Released (23 Jul 2013)
    The latest release of the XMM-Newton Science Archive tool.
  • All-Wavelength Extended Groth Strip International Survey (AEGIS) VLA 20-cm Source Catalog (23 Jul 2013)
    This catalog containing 1,122 20-cm sources in the EGS (from Ivison et al. 2007, ApJ, 660, L77) is now available in Browse and Xamin.
  • Proceedings of 2012 INTEGRAL workshop published (18 Jul 2013)
    The proceedings of the 9th INTEGRAL workshop "An INTEGRAL view of the high-energy sky", Paris, 15-19 October 2012, have been published today (update from initial March release).
  • Faint Images of the Radio Sky at 20-cm (FIRST) Catalog (18 Jul 2013)
    The latest (2013 June 05) version of the FIRST Catalog containing 971,268 20-cm sources (originally published in White et al. 1997, ApJ, 475, 479) is now available in Browse and Xamin.
  • Planck Catalog of Compact Sources Public Release 1 (PCCS1) 100, 143, 217, 353, 545 and 857 GHz Source Tables (16 Jul 2013)
    These 6 tables of 100-857 GHz radio sources (from the Planck Collaboration 2013, A&A, in press) are now available in Browse and Xamin. These tables supersede the Planck Early Release tables (which have been removed).
  • Chandra Cycle 15 Accepted Targets Lists Now Available (12 Jul 2013)
    The peer-review recommended targets for Chandra Cycle 15 for regular, large, multicycle and XVP-type proposals, as well as for joint proposals with other facilities, theory proposals and archive proposals, have been released.
  • 2014 Einstein Post-Doctoral Fellowship Program Call for Proposals (12 Jul 2013)
    Applications from recent (after Jan 1 2011) PhDs in astronomy, physics and related disciplines are solicited to this NASA-sponsored post-doc program for research in high-energy astrophysics, cosmology and dark energy, and gravitational astrophysics which is relevant to current and future missions of NASA's Physics of the Cosmos program. The deadline is Thursday November 7th, 2013.
  • MILLIQUAS - The Million Quasars Catalog (12 Jul 2013)
    The latest version (v3.4, 11 July 2013) of the MILLIQUAS Catalog (Eric Flesch 2013) containing more than one million (1,248,691 to be exact) likely quasars is now available in Browse and Xamin.
  • Australia Telescope 2FGL Unassociated Sources Radio Source Catalog (09 Jul 2013)
    This catalog (from Petrov et al. 2013, MNRAS, 432, 1294) of 424 radio sources found within the 99% error ellipses of 411 gamma-ray sources south of +10 degrees that were marked as 'unassociated' in the 2nd Fermi LAT Catalog is now available in Browse and Xamin.
  • Chandra CALDB 4.5.7 released (01 Jul 2013)
    CalDB 4.5.7 released 28 June 2013 and installed at the HEASARC on 01 July 2013. Note Caldb 4.5.7 is not compatible with CIAO versions earlier than CIAO 4.3...
  • Press Release: NASA Decommissions Its "Galaxy Hunter" Spacecraft (30 Jun 2013)
    NASA has turned off its Galaxy Evolution Explorer (GALEX) spacecraft after a decade of operations in which the venerable space telescope used its ultraviolet vision to study hundreds of millions of galaxies across 10 billion years of cosmic time, as well as to observe stars, supernovae and black holes in our own and/or other galaxies.
  • Fermi Science Analysis Environment Support for Ubuntu 12 (27 Jun 2013)
    Binary distributions of the Fermi SAE are now available for Ubuntu 12 (12.04-12.10) in 32 and 64 bit flavors ...
  • INTEGRAL Science Operations Extended until 31 December 2016 (24 Jun 2013)
    The ESA Science Programme Committee has approved extending the INTEGRAL mission through 2016. As with previous extensions, this is subject to a mid-term confirmation in late 2014.
  • Phoenix Deep Survey Optical & Near-IR Counterparts and Redshifts Catalogs (21 Jun 2013)
    These two catalogs of the properties of 246 (Georgakakis et al., 1999, MNRAS, 306, 708) and 778 (Sullivan et al. 2004, ApJS, 155, 1) radio sources in the Phoenix Deep Field are now available in Browse and (within half a day) Xamin.
  • XMM-Newton ESA Mission Extention (21 Jun 2013)
    ESA's Science Programme Committee approved a new extension for XMM-Newton until 31 December 2016
  • XMM-Newton SAS v13.0.1 Released (21 Jun 2013)
    The latest release of the XMM-Newton Science Analysis Software.
  • Brightest M Dwarfs in the Northern Sky Spectroscopic Catalog (20 Jun 2013)
    This catalog of the 1,564 brightest (J < 9) M-dwarf candidates in the northern sky, 1,408 of which are confirmed to be late-K and M dwarfs (from Lépine & et al. 2013, AJ, 145, 102), is now available in Browse and Xamin.
  • Lepine and Shara Northern Stars with Proper Motions > 0.15"/yr Catalog (19 Jun 2013)
    The LSPM-North catalog of 61,977 high-proper-motion stars (from Lépine & Shara 2005, AJ, 129, 1483) is now available in Browse and Xamin.
  • INTEGRAL AO-11 General Program Approved (18 Jun 2013)
    The INTEGRAL AO-11 General Program, as recommended by the Time Allocation Committee (TAC) and approved on June 3 by the ESA Director of Science and Robotic Exploration (Prof. Alvaro Gimenez), has been released and the observers have been informed.
  • The Turbulent, High-Energy Sky Is Keeping NuSTAR Busy (18 Jun 2013)
    NuSTAR keeps an eye on sudden changes in the high-energy sky
  • Swift CALDB Updated (17 Jun 2013)
    The Swift Caldb has been updated for the SC (update version 20130606).
  • Black Hole Naps Amidst Stellar Chaos (17 Jun 2013)
    NuSTAR teamed up with Chandra to show that the supermassive black hole in the Sculptor galaxy is no longer actively feeding.
  • NASA News Feature: NASA-Led Study Explains Decades of Black Hole Observations (14 Jun 2013)
    A new study (Schnittman et al. (2013, ApJ, 769, 156)) confirms long-held suspicions about how stellar-mass black holes produce their highest-energy light. "Our work traces the complex motions, particle interactions and turbulent magnetic fields in billion-degree gas on the threshold of a black hole..." said lead researcher Jeremy Schnittman, an astrophysicist at NASA/GSFC.
  • NASA News Feature: Astronomers Identify Dozens of Black Holes in M 31 Using Chandra Data (13 Jun 2013)
    Using data from the Chandra X-ray Observatory, researchers (Barnard et al. (2013, ApJ, 770, 148) have discovered an unprecedented bonanza of black holes in the Andromeda Galaxy, one of the nearest galaxies to the Milky Way. The 26 new black hole candidates belong to the stellar mass category, meaning they formed in the death throes of very massive stars and typically are 5 - 10 solar masses.
  • JPL Latest News: NuSTAR Finds Black Hole in NGC 253 "Napping" Amidst Stellar Chaos (12 Jun 2013)
    Nearly a decade ago, the Chandra X-ray Observatory caught signs of what appeared to be a black hole snacking on gas at the middle of the nearby Sculptor galaxy (NGC 253). Now, NuSTAR has taken a peek at this starburst galaxy, and found the black hole is currently "asleep", according to Lehmer et al. (2013, ApJ, in press).
  • Fermi Cycle-6 Phase-2 Proposal Deadline is Nearing (12 Jun 2013)
    Phase-2 (budget) proposals for the Fermi Cycle-6 GI Program are due on June 24, 2013. If you have been invited to submit a phase-2 proposal, please refer to the instructions on the Proposals web page for submission details.
  • Updated Nearby Galaxy Catalog (06 Jun 2013)
    This catalog of 869 known nearby galaxies which are either within 11 Mpc or have radial velocities rel. to the LG centroid of < 600 km/s (from Karachentsev et al. 2013, AJ, 145, 101) is now available in Browse and Xamin, replacing the earlier version (from Karachentsev et al. 2004, AJ, 127, 2031).
  • Catalog of X-Ray Selected BL Lac Objects (05 Jun 2013)
    This table of the properties of 312 X-ray selected BL Lacs (from Kapanadze 2013, AJ, 145, 31) is now available in Browse and Xamin.
  • News Feature: A Joint Chandra/Spitzer Study Suggests Black Holes Are Abundant Among The Earliest Stars (05 Jun 2013)
    By comparing infrared and X-ray background signals across the same stretch of sky, an international research team (Cappelluti et al. (2013, ApJ, in press) has discovered evidence of a significant number of black holes that accompanied the first stars in the universe. Based on data from NASA's Chandra X-ray and Spitzer IR space telescopes, they conclude that 1 of every 5 sources contributing to the IR signal is a black hole.
  • Extended Chandra Deep Field South 2nd Data Release 1.4-GHz VLA Source Catalog (24 May 2013)
    This table of 883 1.4-GHz radio sources and 49 components detected above a 5-sigma threshold in the ECDF-S (from Miller et al. 2013, ApJS, 205, 13) is now available in Browse and Xamin.
  • News Feature: NASA Builds Unusual Testbed for Analyzing X-Ray Navigation Technologies (22 May 2013)
    Pulsars have a number of unusual qualities: like zombies, they shine even though they are technically dead, and they rotate rapidly, emitting powerful and regular beams of radiation that are seen as flashes of light, blinking on and off at intervals from seconds to milliseconds. A NASA/GSFC team has built the Goddard X-ray Navigation Laboratory Testbed to simulate these distinctive pulsations.
  • XSPEC 12.8.0l,m Released (20 May 2013)
    Released May 17, 2013. improves the handling of the corner cases where 1 or more norm parameters are set to zero during a fit. Also 12.8.0l released May 10, 2013 - fix for PyXspec bug affecting change is made to the response gain through one Python RModel object ...
  • XMM-Newton Cluster Survey Catalog, Data Release 1 (15 May 2013)
    This catalog of 503 clusters detected in the XMM-Newton Cluster Survey 1st Data Release (from Mehrtens et al. 2012, MNRAS, 423, 1024) is now available in Browse and Xamin.
  • XMM-Newton SAS v13.0.0 Released (09 May 2013)
    The latest release of the XMM-Newton Science Analysis Software.
  • XMM-Newton Survey Science Center Survey of the Galactic Plane (08 May 2013)
    This catalog of 739 X-ray sources detected by XMM-Newton, and their optical/infrared counterparts, in 26 fields along the Galactic Plane (from Nebot Gomez-Moran et al. 2013, A&A, 553, A12) is now available in Browse and Xamin.
  • Swift CALDB Updated (07 May 2013)
    The Swift Caldb has been updated for the SC (update version 20130507).
  • Radio-Selected Extended Chandra Deep Field South Source Catalog (06 May 2013)
    This catalog of the derived X-ray properties and redshifts of 268 radio-selected Chandra X-ray sources in the 4-Ms CDF-S and E-CDF-S fields (from Vattakunnel et al. 2012, MNRAS, 420, 2190) is now available in Browse and Xamin.
  • Planck Catalog of Sunyaev-Zeldovich Sources Release 1 (03 May 2013)
    This table of 1227 clusters and cluster candidates detected by their S-Z effect on the CMB (from the Planck Collaboration 2013, A&A, in press) is now available in Browse and Xamin.
  • GALEX Time Domain Survey (TDS) Catalog of Ultraviolet Variable Sources (01 May 2013)
    This catalog of 1078 GALEX NUV sources in the TDS fields which varied by more than 5 sigma in at least one epoch (from Gezari et al. 2013, ApJ, 766, 60) is now available in Browse and Xamin.
  • NASA News Release: Chandra Studies Giant Gas Cloud in System NGC 6240 (01 May 2013)
    Scientists have used Chandra to make a detailed study of an enormous cloud of hot gas enveloping two large, colliding galaxies in the system called NGC 6240. This unusually large reservoir of gas contains as much mass as 10 billion Suns, spans about 300,000 light years, and radiates at a temperature of more than 7 million degrees, according to (Nardini et al. (2013, ApJ, 765, 141).
  • Catalog of XMM-Newton X-ray Sources in the M 83 Starburst Galaxy (30 Apr 2013)
    This catalog of 189 X-ray sources detected by XMM-Newton towards M 83 (from Ducci et al. 2013, A&A, 553, A7) is now available in Browse and Xamin.
  • NASA News Release: The Day the Fermi Gamma-Ray Space Telescope Dodged a 1.5-ton Bullet (30 Apr 2013)
    NASA scientists don't often learn that their spacecraft is at risk of crashing into another satellite. But when Julie McEnery, the project scientist for NASA's Fermi satllite, checked her e-mail on March 29, 2012, she found herself facing this precise situation: Fermi was just one week away from an unusually close encounter with Cosmos 1805, a defunct Soviet spy satellite!
  • ESA Releases INTEGRAL AO-11 Proposal Statistics (25 Apr 2013)
    A total of 55 proposals were recieved with 62 Msec of observing time requested. A breakdown of the number of proposals by science category can be found at the above link.
  • Fermi LAT CALDB update (24 Apr 2013)
    The CALDB for the Fermi LAT has been updated to version v9r31p1_20130424...
  • Planck Catalog of Compact Sources Public Release 1 (PCCS1) 30-, 44- and 70-GHz Source Tables (24 Apr 2013)
    These 3 tables of 30-, 44- and 70-GHz radio sources (from the Planck Collaboration 2013, A&A, in press) are now available in Browse and Xamin. The remaining PCCS1 tables of higher frequency sources will be available shortly.
  • Fermi Science Analysis Environment Updated (24 Apr 2013)
    Fermi SAE updated to version v9r31p1 on April 24, 2013. This release includes numerous updates and bug fixes ...
  • XSPEC 12.8.0k Released (24 Apr 2013)
    Released March 19, 2013. This replaces the AtomDB v2.0.2 files of patch 12.8.0i with corrected versions including calculations up to 100 keV ...
  • Ritter Catalog of Cataclysmic Binaries (Version 7.19) (19 Apr 2013)
    The latest (7.19: March-2013) versions of the Cataclysmic Binaries Catalog, the Low-Mass X-ray Binaries Catalog and the Binaries Related to CVs Catalog (Ritter & Kolb 2003-2013) are all now available in Browse and in Xamin.
  • Updated IRAM Plateau de Bure Interferometer Observing Log (19 Apr 2013)
    The latest version of the IRAM PdB Interferometer observing log (Dan et al. 1991-2013, IRAM Newsletters) containing 15,849 observations through 2012 March 31 is now available in Browse and Xamin.
  • DS9 Updated (16 Apr 2013)
    Version 7.2; new support for loading and saving FITS images, data cubes, mosaics and other image formats, more ...
  • Fermi in the News: Blazar Markarian 421's Flare-up is Cosmic Coincidence (16 Apr 2013)
    The skies are currently being flooded with the brightest display of gamma rays - the Universe's highest-energy light - ever seen by astronomers. The culprit is a staggering flare-up of Markarian 421, a "blazar" that hosts a supermassive black hole.
  • NASA News Release: Suzaku 'Post-mortem' Yields Insight into Kepler's Supernova (13 Apr 2013)
    The exploding star observed in 1604 by Johannes Kepler held a greater fraction of heavy elements than the sun, according to an analysis of X-ray observations from the Suzaku satellite. The findings will help astronomers better understand the diversity of type Ia supernovae, an important class of stellar explosion used in probing the distant universe.
  • MILLIQUAS - The Million Quasars Catalog (12 Apr 2013)
    The latest version (v3.3, 7 Apr 2013) of the MILLIQUAS Catalog (Eric Flesch 2013) containing more than one million (1,246,268 to be exact) likely quasars is now available in Browse and Xamin.
  • Swift CALDB Updated (11 Apr 2013)
    The Swift Caldb has been updated for the SC (update version 20130405).
  • NASA News Release: NASA Selects Explorer Investigations for Formulation (05 Apr 2013)
    NASA's Astrophysics Explorer Program has selected two missions for launch in 2017: a planet-hunting satellite and an ISS instrument to observe X-rays from stars. The Transiting Exoplanet Survey Satellite (TESS) and the Neutron Star Interior Composition Explorer (NICER) were among 4 concept studies submitted in Sep 2012. Congratulations to George Ricker (TESS PI) and Keith Gendreau (NICER PI) & their teams!
  • NICER and the Upcoming Zombie Star Apocalypse (05 Apr 2013)
    NASA Taps the Power of Zombie Stars in a Two-in-One Instrument called NICER.
  • NASA Selects NICER for Development (05 Apr 2013)
    NASA's Astrophysics Explorer Program has selected two missions for launch in 2017: a planet-hunting satellite and an International Space Station instrument to observe X-rays from neutron stars, NICER.
  • NASA News Release: Chandra Detects Extended X-Ray Emission Attributed to Young Stars in the SMC (03 Apr 2013)
    Using Chandra, researchers have discovered extended X-ray emission from the two most densely populated regions in the Small Magellanic Cloud star cluster NGC 602a, which they argue comes from the population of thousands of young, low-mass stars in this cluster (see Oskinova et al. 2013, ApJ, 765, 73 for the full details).
  • Australia Telescope Low-Brightness Survey (ATLBS) 1.4-GHz Source Catalog (02 Apr 2013)
    This table of 1366 1.4-GHz radio sources detected above a threshold of 0.38 mJy in the ATLBS (from Thorat et al. 2013, ApJ, 762, 16) is now available in Browse and Xamin.
  • Arcminute Microkelvin Imager Galactic Plane Survey 16-GHz Source Catalog (28 Mar 2013)
    This catalog of 3503 radio sources detected by the AMI Small Array in a survey of the plane of the Milky Way between l = 76 and 170 deg. (from Perrott et al. 2013, MNRAS, 429, 3330) is now available in Browse and Xamin.
  • Milky Way Project First Data Release Infrared Bubble Catalog (27 Mar 2013)
    This catalog of 5106 infrared bubbles in the plane of the Milky Way (from Simpson et al. 2012, MNRAS, 424, 2442) is now available in Browse and Xamin.
  • Proceedings of 2012 INTEGRAL workshop on-line (26 Mar 2013)
    The first set of accepted papers of the workshop proceedings "An INTEGRAL view of the high energy sky (the first 10 years)" is now available on-line. More to be expected soon.
  • The Multi-Messenger Time Domain Astronomy Conference Has Been Cancelled (25 Mar 2013)
    Due to the US federal government's budget sequester, this meeting (which was to have been held in late May) has unfortunately had to be cancelled.
  • Planck Mission Announces Data Release 1 (23 Mar 2013)
    The Planck team has released sky maps, likelihood software, and other data.
  • Cosmic Microwave Backround Experiments Master Catalog (22 Mar 2013)
    This catalog of 62 gound-based, balloon-borne and satellite-based CMB experiments, together with links to their data products (if public) at the LAMBDA part of the HEASARC, is now available in Browse and Xamin.
  • CFITSIO Updated (21 Mar 2013)
    Version 3.34 released March 20; Several enhancements and bug fixes...
  • ESA News Release: Black Hole-Star Pair Orbiting at Dizzying Speed (20 Mar 2013)
    XMM-Newton has helped to identify a star and a black hole that orbit each other at the dizzying rate of once every 2.4 hours, smashing the previous record by nearly an hour, accroding to Kuulkers et al. (2013, A&A, 552, A32). This compact binary, known as MAXI J1659-152, was first discovered in 2010 by Swift and MAXI...
  • XSPEC 12.8.0j Released (19 Mar 2013)
    Released March 19, 2013. Adds a new test option to the tclout statistic and tclout statmethod commands ...
  • NGC 4649 Chandra X-Ray Point Source Catalog (19 Mar 2013)
    This catalog of 501 Chandra X-ray sources detected in the merger of 6 individual ACIS-S3 observations or in the individual observations of the elliptical galaxy NGC 4649 (from Luo et al. 2013, ApJS, 204, 14) is now available in Browse and Xamin.
  • Chandra Study of the Kepler SNR Identifies What Triggered the Supernova (19 Mar 2013)
    A new study by Burkey et al. (2013) has used Chandra together with supporting Spitzer data to identify precisely what caused the Type Ia supernova explosion that produced the Kepler supernova remnant, namely that it was triggered by an interaction between a white dwarf and a red giant (AGB) star.
  • Swift CALDB Updated (18 Mar 2013)
    The Swift Caldb has been updated for the XRT (update version 20130313).
  • M 16 (Eagle Nebula) and NGC 6611 Cluster Chandra X-Ray Source Catalog (18 Mar 2013)
    This catalog of 1754 Chandra X-ray sources in 3 ACIS-I fields towards M 16 (from Guarcello et al. 2012, ApJ, 753, 117) is now available in Browse and Xamin.
  • Allen Telescope Array Pi GHz Sky Survey (PiGSS) Deep Fields Source Catalog (14 Mar 2013)
    The PiGSS catalog of 808 3.1-GHz sources detected in the ELAIS-N1, Coma, Lockman Hole and NDWFS deep fields (Croft et al. 2013, ApJ, 762, 93) is now available in Browse and Xamin.
  • Australia Telescope Large Area Survey (ATLAS) Spectroscopic Classes and Redshifts Catalog (13 Mar 2013)
    This table of new spectroscopic classes and redshifts for 466 1.4-GHz radio sources in ATLAS (from Mao et al. 2012, MNRAS, 426, 3334) is now available in Browse and Xamin.
  • Suzaku CALDB updated (11 Mar 2013)
    The Suzaku CALDB has been updated for the XIS (update version 20130305) ...
  • Swift CALDB Data updated (11 Mar 2013)
    The Swift Caldb has been updated for the SC (update version 20130308)...
  • INTEGRAL AO-11 Call for Observing Proposals is open (4 Mar 2013)
    The ESA Director of Science and Robotic Exploration (Prof. Alvaro Gimenez) has released the 11th Announcement of Opportunity for observing proposals with INTEGRAL. This announcement solicits proposals for observations to be carried out from January 2014 for a period of 12 months. Proposals submission is Friday 12 April 2012, 14:00 CEST.
  • NASA News Release: Fermi's Motion Produces a Study in Spirograph (03 Mar 2013)
    Fermi orbits the Earth every 95 minutes, building up increasingly deeper views of the universe with every circuit. Its wide-eyed Large Area Telescope sweeps across the entire sky every three hours, capturing the gamma rays from sources across the universe. These range from supermassive black holes billions of light-years away to intriguing objects in our own Galaxy, such as X-ray binaries, SNRs and pulsars.
  • CFITSIO Updated (03 Mar 2013)
    Version 3.33 released February 28; Several enhancements and bug fixes...
  • Suzaku Cycle 8 Target List Available (28 Feb 2013)
    The list of accepted Suzaku AO-8 targets is now available.
  • NuSTAR helps solve the Spinning Black Hole riddle (27 Feb 2013)
    NuSTAR teamed up with XMM-Newton to definitively measure, for the first time ever, the spin of a supermassive black hole.
  • XMM Large-Scale Structure Deep (2XLSSd) Full-Exposure X-Ray Source Catalog (26 Feb 2013)
    This catalog of 6,721 X-ray sources detected in the complete XMM-LSS, together with the uniform 10-ksec exposures 2XLSS catalog of 5,572 X-ray sources (both from Chiappetti et al. 2013, MNRAS, 429, 1652), are now available in Browse and Xamin.
  • Fornax Dwarf Galaxy XMM-Newton X-Ray Source Catalog (26 Feb 2013)
    This catalog of 107 X-ray sources detected in an observation of the Fornax galaxy (from Nucita et al. 2013, A&A, 550, A18) is now available in Browse and Xamin.
  • XSPEC 12.8.0h Released (20 Feb 2013)
    Released February 20, 2013. Fix to the lrt Tcl command script ...
  • EUVE Right Angle Program, 1st Catalog (20 Feb 2013)
    The catalog of 114 EUV sources detected by EUVE in its Right Angle Program during its first year of operations (McDonald et al. 1994, AJ, 108, 1843) is now available in Browse and Xamin.
  • X-Ray Background Tool v2.5 released (19 Feb 2013)
    The X-Ray Background Tool has been enhanced with support for extraction regions with radii up to 10 degrees.
  • XSPEC 12.8.0g Released (19 Feb 2013)
    Released February 15, 2013. Improvements made for running the Goodman-Weare algorithm in the chain command...
  • Updated IRAM Pico Veleta 30-m Telescope Observation Log (15 Feb 2013)
    The latest version of the IRAM 30-m telescope observing log (Dan et al. 1991-2012, IRAM Newsletters) containing 148,252 millimeter observations is now available in Browse and Xamin.
  • NASA News Release: Fermi Proves Supernova Remnants Produce Cosmic Rays (14 Feb 2013)
    A new study using Fermi observations reveals the first clear-cut evidence that the expanding debris of exploded stars produces some of the fastest-moving matter in the universe. This discovery is a major step toward understanding the origin of cosmic rays, one of the Fermi mission's primary goals.
  • NASA News Release: Chandra Suggests Rare Explosion Created Our Galaxy's Youngest Black Hole (13 Feb 2013)
    New data from the Chandra X-ray Observatory suggest a highly distorted supernova remnant, W49B, may contain the most recent black hole formed in the Milky Way. The remnant appears to be the product of a rare explosion in which matter is ejected at high speeds along the poles of a rotating star.
  • MILLIQUAS - The Million Quasars Catalog (13 Feb 2013)
    The latest version (v3.2, 10 February 2013) of the MILLIQUAS catalog (Eric Flesch 2013) containing more than one million (1,221,803) likely quasars is now available in Browse and Xamin.
  • 2013 Fermi Summer School (12 Feb 2013)
    The Fermi project is happy to announce the opening of registration for the 2013 Fermi Summer School, which will run from May 28 through June 7 2013. In addition to comprehensive coverage of gamma-ray astrophysics topics, this year's program will include a special emphasis on searches for dark matter and new physics.
  • Fermi Alternative Observing Strategies (12 Feb 2013)
    The Fermi project and the Fermi Users Group are considering the possible implementation of alternative observing strategies that might more effectively facilitate specific science objectives, e.g., a desire for increased sensitivity to flaring sources in the northern hemisphere, or monitoring sources near the galactic center. These are only a few among many possibilities and community input is sought.
  • XSPEC 12.8.0f Released (07 Feb 2013)
    Released February 6, 2013. Fixes a bug in the plot_goodness command...
  • XSPEC 12.8.0e Released (06 Feb 2013)
    Released January 31, 2013. Updates to PyXspec: interfaces for the parallel and statistic test commands...
  • Australia Telescope Large Area Survey (ATLAS) E-CDF-S 5.5-GHz Components Catalog (05 Feb 2013)
    This table of 142 radio sources and components detected with the ATCA at 5.5 GHz in the Extended Chandra Deep Field-South (from Huynh et al. 2012, MNRAS, 426, 2342) is now available in Browse and Xamin.
  • New Fermi Science Support Center Flare Database (01 Feb 2013)
    The FSSC is pleased to announce a new resource which is a compilation of flares derived from LAT aperture photometry light curves. Any sources found to be in a flaring state will be shown on a special page.
  • NGC 1399 Chandra X-Ray Source Catalog (01 Feb 2013)
    This catalog of 230 X-ray sources and their optical counterparts in the giant elliptical galaxy NGC 1399 (from Paolillo et al. 2011, ApJ, 736, 90) is now available in Browse and Xamin.
  • INTEGRAL Optical Monitoring Camera First Catalog of Optically Variable Sources (31 Jan 2013)
    This catalog of 5,263 optically variable sources monitored by the INTEGRAL OMC (from Alfonso-Garzon et al. 2012, A&A, 548, A79) is now available in Browse and Xamin.
  • AO-11 Proposal Schedule Released (28 Jan 2013)
    The ISOC is preparing the next call for proposals requesting INTEGRAL observing time. The AO-11 will be released on 4 March 2013, with a deadline of 12 April 2013. The subsequent call for proposals requesting data rights will be released September 2013. The AO-11 cycle of observations will begin on 1 January 2014 and has a duration of 12 months.
  • AO-10 Starts (28 Jan 2013)
    The AO-10 cycle of observations started on January 1st and will last 12 months. The INTEGRAL target lists and sky maps are available at the above link.
  • PIMMS updated to Version 4.6b (26 Jan 2013)
    Suitable for use for Cycle 15 proposals
  • XSPEC 12.8.0d Released (25 Jan 2013)
    Released January 24, 2013. simftest improvements, removes an infinite loop case which could occur when the fit becomes insensitive to all variable fit parameter, other changes...
  • xTime tool updated (24 Jan 2013)
    NuSTAR support has been added to xTime. Also, some unused mission day formats have been removed.
  • Suzaku CALDB updated (20 Jan 2013)
    The Suzaku CALDB has been updated for the XIS (update version 20130110)...
  • Swift CALDB Data updated (20 Jan 2013)
    The Swift Caldb has been updated for the UVOTA (update version 20130118).
  • Molonglo Observatory Synthesis Telescope ATLAS 843-MHz Source Catalog (17 Jan 2013)
    This catalog of 325 843-MHz radio sources and their counterparts at higher frequencies in the ELAIS-S1 Field portion of the AT Large Area Survey (from Randall et al. 2012, MNRAS, 421, 1644) is now available in Browse and Xamin.
  • T-RaMiSu: Two-Meter Radio Mini-Survey of the Bootes Field Source Catalog (15 Jan 2013)
    This catalog of 1449 153-MHz radio sources and components in the NOAO Bootes Field (from Williams et al. 2013, A&A, 549, 55) is now available in Browse and in Xamin.
  • Fermi Cycle 6 Proposal Deadline Is Very Near! (14 Jan 2013)
    The deadline for proposals to participate in the Fermi Cycle-6 Guest Investigator program is January 18, 2013 at 4:30 PM EST. Proposals should be submitted through the ARK Remote Proposal Submission (RPS) system. Further details are available in the Fermi Amendment to the 2012 ROSES NRA.
  • Sloan Digital Sky Survey DR7 White Dwarfs Catalog (11 Jan 2013)
    This catalog of parameters derived from 20,407 spectra of 19,712 spectroscopically confirmed white dwarf stars in the SDSS DR7 (from Kleinman et al. 2013, ApJS, 144, 5) is now available in Browse and in Xamin.
  • Chandra CALDB 4.5.5.1 released (09 Jan 2013)
    CalDB 4.5.5.1 released 08 January 2013 and installed at the HEASARC on 09 January 2013. Note Caldb 4.5.5.1 is not compatible with CIAO versions earlier than CIAO 4.3...
  • NuSTAR images two high-energy Black Holes (09 Jan 2013)
    NuSTAR detected high energy X-ray emission from two black holes in the outer reaches of the galaxy IC 342, and also obtained a new image of the Cas A supernova remnant.
  • Spitzer Survey of Orion A and B Molecular Clouds Young Stellar Objects Catalog (08 Jan 2013)
    This catalog of 3479 dusty YSOs identified based on their Spitzer and 2MASS IR magnitudes and colors (from Megeath et al. 2012, AJ, 144, 192) is now available in Browse and in Xamin.
  • NASA News: Fermi and the VLBA Detect Gamma-Ray Flaring in a Galaxy 'Far' From Its Central Black Hole (07 Jan 2013)
    In 2011, a blast of energy launched by the 2.6 billion solar mass black hole in 4C +71.07 almost 11 billion years ago reached the Earth. Using a combination of data from Fermi and the Very Long Baseline Array, astronomers have zeroed in on the source of this ancient outburst as coming from a location about 20 pc from the black hole.
  • NASA News: New Chandra Movie Features Neutron Star Action (07 Jan 2013)
    This latest Chandra movie features a deeper look at a fast moving jet of particles produced by the Vela pulsar, a rapidly rotating neutron star, and may provide new insight into the nature of some of the densest matter in the universe.
  • WMAP Nine-Year Five-Band Point Source Catalog (03 Jan 2013)
    This catalog of 501 WMAP point sources found using a 5-band technique, as well as the WMAP 9-Year CMB-Free QVW Point Source Catalog of 502 point sources found using an alternative technique (both from Bennett et al. 2012, ArXiv 1212.5225), are now available in Browse and (within half a day) in Xamin.
  • Swift Press Release: A New Year's Gift from NASA & Penn State (02 Jan 2013)
    A large new collection of space photos taken at wavelengths that the human eye can not perceive and that do not penetrate Earth's atmosphere has been released as a New Year's gift by NASA and Penn State University. The images were captured by the UVOT telescope onboard Swift, whose science and flight operations are controlled by PSU from the Mission Operations Center in State College, Pa.
  • New NICER web site is now Open (31 Dec 2012)
    The Neutron star Interior Composition ExploreR mission web site is now public, with lots of information and graphics on this proposed new NASA mission.
  • XSPEC 12.8.0 Released (28 Dec 2012)
    Released December 28, 2012. Parallel processing capabilities, improvements to Levenberg-Marquardt fit algorithm, other changes...
  • HEASoft 6.13 released (27 Dec 2012)
    Released December 27, 2012; primarily driven by updates to the Swift mission software, but also includes updates to other packages which have been revised to mirror the current development versions in use at the HEASARC......
  • Swift CALDB Data updated (26 Dec 2012)
    The Swift Caldb has been updated for the SC (update version 20121218).
  • Chandra COSMOS (C-COSMOS) Survey Optical/IR Counterparts Catalog (21 Dec 2012)
    This catalog of counterpart information on 1761 Chandra X-ray sources in the COSMOS field (from Civano et al. 2012, ApJS, 201, 30) is now available in Browse and (within half a day) Xamin.
  • XMM-Newton Slew Survey 2-10 keV Band Extragalactic Sample Source Catalog (19 Dec 2012)
    This catalog of 219 2-10 keV X-ray sources selected to comprise an extragalactic sample (from Warwick et al. 2012, A&A, 548, A99) is now available in Browse and (within half a day) Xamin.
  • VLA Low-Frequency Sky Survey Redux (VLSSr) Source Catalog (18 Dec 2012)
    The VLSSr catalog (from Lane et al. 2012, Radio Science, 47, RS0K04) of 95,491 74-MHz radio source (components) above 5-sigma in 3 pi sr of the sky is now available in Browse and (within half a day) Xamin.
  • Chandra: CIAO 4.5 released (14 Dec 2012)
    CIAO 4.5 was released on December 13; mkpsf tool withdrawn, tg_findzo tool released, more...
  • Chandra Cycle 15 Call for Proposals Has Been Released (14 Dec 2012)
    The Chandra X-ray Center is pleased to announce the release of the Chandra Cycle 15 Call for Proposals. The due date for Cycle 15 proposals to be submitted is 2013 March 14.
  • NASA Feature: New Study Reveals a Remarkable Symmetry in Black Hole Jets (14 Dec 2012)
    Black holes range from modest objects formed when individual stars end their lives to behemoths billions of times more massive that rule the centers of galaxies. Nemmen et al. (2012, Science, 338, 1445) use Swift and Fermi data to show that high-speed jets launched from active black holes possess fundamental similarities regardless of mass, age or environment, hinting that common physical processes amy be at work.
  • Australia Telescope Hubble Deep Field-South Consolidated Radio Source Catalog (12 Dec 2012)
    This catalog (from Huynh et al. 2007, AJ, 133, 1331) of radio fluxes and spectral indices of 473 sources detected in the HDF-S is now available in Browse and in Xamin, as are the related catalogs of the individual 2.5, 5.2 and 8.7 GHz measurements from the same paper, and of the optical identifications and classifications from Huynh (2008, AJ, 135, 2470).
  • General Catalog of Variable Stars, March 2012 Version (12 Dec 2012)
    This catalog (from Samus et al. 2012) of 45,835 known variable stars is now available in Browse and in Xamin, as is an updated version of the related GCVS Suspected Variable Stars Catalog from the same source.
  • XMMAO (XMM-Newton Accepted Targets) Table (09 Dec 2012)
    The latest version of the table of accepted XMM-Newton targets, updated to include AO-12 results, is now available in Browse and Xamin.
  • NASA Press Release: Fermi Improves its Vision for Thunderstorm Gamma-Ray Flashes (06 Dec 2012)
    Thanks to improved data analysis techniques and a new operating mode, the Fermi Gamma-ray Burst Monitor (GBM) is now 10 times better at catching TGFs, the brief outbursts of high-energy light mysteriously produced above thunderstorms, than ever before.
  • XMM-Newton AO-12 Results Released (04 Dec 2012)
    The list of XMM-Newton observing proposals accepted by the AO-12 Observing Time Allocation Committee is now available.
  • Swift CALDB Data updated (03 Dec 2012)
    The Swift Caldb has been updated for the SC (update version 20121128).
  • VLA Extended-Chandra Deep Field South 1.4-GHz Sources Optical/IR/X-ray Counterparts Catalog (29 Nov 2012)
    This catalog (from Bonzini et al. 2012, ApJS, 203, 15) of 883 1.4-GHz radio sources (and their counterparts in the optical, IR and X-ray) in the E-CDFS field is now available in Browse and Xamin.
  • Swift CALDB Data updated (28 Nov 2012)
    The Swift Caldb has been updated for the SC (update version 20121005).
  • Suzaku Cycle 8 Now Closed (26 Nov 2012)
    Suzaku Cycle 8 is now closed. NASA has received 67 proposals for an oversubscription factor of 3.1
  • Suzaku CALDB updated (15 Nov 2012)
    The Suzaku CALDB has been updated for the XIS (update version 20121106)...
  • Phoenix Deep Survey 1.4-GHz Source Catalog (13 Nov 2012)
    This catalog (from Hopkins et al. 2003, AJ, 125, 465) of 2148 1.4-GHz radio sources with a 10% false detection rate threshold detected by the ATCA in the Phoenix Deep Field is now available in Browse and Xamin.
  • Australia Telescope ESO Slice Project Redshift Survey Region 1.4-GHz Source Catalog (07 Nov 2012)
    This catalog (from Prandoni et al. 2000, A&AS, 146, 41) of 3370 1.4-GHz radio sources and components detected above 0.5 mJy (6-sigma) in the ESP region is now available in Browse and in Xamin.
  • Australia Telescope Hubble Deep Field-South 1.4-GHz Source Catalog (06 Nov 2012)
    This catalog (from Huynh et al. 2005, AJ, 130, 1363) of 466 1.4-GHz radio sources detected above 5-sigma in the HDF-S is now available in Browse and in Xamin.
  • Reminder: Suzaku AO-8 Proposals Deadline Is Near! (06 Nov 2012)
    The deadline for Suzaku AO-8 proposals from US-based observers is Friday November 16th at 4:30pm EST. No new Key Project proposals are solicited for this AO, due to the uncertainty over the remaining mission lifetime.
  • NASA Press Release: Fermi Measures Cosmic 'Fog' Produced by Ancient Starlight (01 Nov 2012)
    Astronomers using data from NASA's Fermi Gamma-ray Space Telescope have made the most accurate measurement of the extragalactic background light in the universe and used it to establish the total number of stars that have ever shone, accomplishing a primary Fermi mission goal.
  • Updated IRAM Plateau de Bure Interferometer Observation Log (01 Nov 2012)
    The latest version of the IRAM PdBI observing log (Dan & Meri 1991-2012, IRAM Newsletters) containing 15,047 millimeter observations is now available in Browse and (within half a day) in Xamin.
  • Merged Catalog of Galactic Reflection Nebulae (31 Oct 2012)
    This uniform catalog of 913 Galactic reflection nebulae (from Magakian 2003, A&A, 399, 141) is now available in Browse and (within half a day) Xamin.
  • SDSS/XMM-Newton/FIRST Type 1 AGN Catalog (24 Oct 2012)
    This table of the X-ray, optical and radio properties of a sample of 863 type 1 AGN with redshifts up to ~2.3 (from Ballo et al. 2012, A&A, 545, 66) is now available in Browse and (within half a day) Xamin.
  • NuSTAR Spots a Flare from Sgr A* (24 Oct 2012)
    NuSTAR saw a rare X-ray outburst, or flare, from Sgr A*, the Milky Way's notoriously quiet central supermassive black hole.
  • Nature Letter: INTEGRAL Detects the Ti-44 Radioactive Decay Emission Lines in SNR 1987A (22 Oct 2012)
    Grebenev et al. (2012, Nature, 490, 373) have just published their results from 4.5-Megasecond INTEGRAL observations of SNR 1987A in 2010-11 in which they have detected the predicted Ti-44 emission lines at 68 and 78 keV.
  • MILLIQUAS - The Million Quasars Catalog (22 Oct 2012)
    The latest version (v3.1, 22 October 2012) of this catalog (from E. Flesch 2012) containing more than one million (1,226,331) likely quasars is now available in Browse and (within half a day) Xamin.
  • XMM-Newton 2XMMi-DR3 Selected Source Classifications Catalog (22 Oct 2012)
    This table of 4330 unique X-ray sources from the XMM Serendipitous Source Catalog for which classifications have been made (from Lin et al. 2012, ApJ, 756, 27), and a related table of the 19637 individual detections of these sources are now available in Browse and (within half a day) Xamin.
  • Fermi Cycle-6 NRA has been issued: GI Proposals are due on January 18, 2013 (22 Oct 2012)
    The call for proposals to participate in the Fermi Cycle-6 Guest Investigator Program has been issued by NASA Headquarters as an amendment to the 2012 ROSES NRA. The Cycle-6 program includes several new opportunities for guest investigations.
  • News Story: INTEGRAL, Ten Years of Tracking Extreme Radiation Across the Universe (19 Oct 2012)
    ESA's International Gamma-Ray Astrophysics Laboratory was launched ten years ago this week. This is a good time to look back at some of the highlights of the mission's first decade and forward to its future plans (more from ESA)
  • XDEEP2: DEEP2 Galaxy Redshift Survey Fields Chandra Point Source Catalog (17 Oct 2012)
    This catalog of the X-ray and optical (if detected) properties of 2976 Chandra ACIS-I sources in 4 DEEP2 survey fields (from Goulding et al. 2012, ApJS, 202, 6) is now available in Browse and (within half a day) in Xamin.
  • Chandra CALDB 4.5.3 released (16 Oct 2012)
    CalDB 4.5.3 released 15 October 2012 and installed at the HEASARC on 16 October 2012. Note Caldb 4.5.3 is not compatible with CIAO versions earlier than CIAO 4.3...
  • Optically Selected Radio-Intermediate & Radio-Loud Quasars X-ray Emission Catalog (16 Oct 2012)
    This catalog of the X-ray, optical/UV and X-ray properties of 654 RI & RL quasars (from Miller et al. 2011, ApJ, 726, 20) is now available in Browse and (within half a day) in Xamin.
  • Updated calibration of Suzaku XIS (15 Oct 2012)
    An updated calibration of contaminant build-up, and hence of the low-energy response of XIS, has been released.
  • DS9 Updated (13 Oct 2012)
    Version 7.1; catalog matching, enhanced plot tools, more ...
  • Suzaku CALDB updated (05 Oct 2012)
    The Suzaku CALDB has been updated for the XIS (update version 20120902)...
  • Swift CALDB Data updated (05 Oct 2012)
    The Swift Caldb has been updated for the SC (update version 20120830).
  • Murchison Wide-field Array 32-T Low-Frequency Source Catalog (05 Oct 2012)
    This catalog of 648 100-200 MHz radio sources detected in two high Galactic latitude fields (Williams et al. 2012, ApJ, 755, 47) is now available in Browse and (within half a day) in Xamin.
  • ELAIS Final Band-Merged Catalog (03 Oct 2012)
    The European Large-Area ISO Survey Final Band-Merged Catalog (Rowan-Robinson et al. 2004, MNRAS, 351, 1290) of 3762 infrared sources is now available in Browse and (within half a day) in Xamin.
  • Xamin 1.7 released (03 Oct 2012)
    A new information pane is now included in the main Xamin web interface. This pane shows information about groups of tables and the detailed table documentation. Previously this information had been displayed in the bottom of the main query pane. … Continue reading
  • NASA News Release: Simulations Uncover 'Flashy' Secrets of Merging Black Holes (02 Oct 2012)
    A team that includes astrophysicists at NASA/GSFC is using computational models to explore the mergers of supersized black holes. Their most recent work investigates what kind of electromagnetic "flash" might be seen by telescopes when astronomers ultimately detect gravitational wave signals from such an event.
  • HEASARC batch queries handled by Xamin (02 Oct 2012)
    At approximately 9:30 AM EDT October 2 2012 we have moved the handling of batch queries to use our Xamin system. For most users we hope this will be transparent, but see our previous articles for potential changes. Benchmarks have … Continue reading
  • Suzaku AO-8 Proposals Due on Nov 16, 2012 (1 Oct 2012)
    The AO-8 Call for Proposals has been released. The deadline for US-based observer is 4:30 pm EST on Nov 16, 2012.
  • Chandra CALDB 4.5.2 released (28 Sep 2012)
    CalDB 4.5.2 released 27 September 2012 and installed at the HEASARC on 28 September 2012. Note Caldb 4.5.2 is not compatible with CIAO versions earlier than CIAO 4.3...
  • Reminder: The Deadline for XMM-Newton AO-12 Proposals Is Very Soon! (28 Sep 2012)
    Proposals for the XMM-Newton AO-12 are due no later than 8:00 am EDT on October 5th.
  • SDSS/UKIDSS-LAS Matched Quasars Catalog (28 Sep 2012)
    The Sloan Digital Sky Survey/UKIRT DSS Large Area Survey Matched Quasars catalog (Peth et al. 2011, AJ, 141, 105) is now available in Browse and (within half a day) in Xamin.
  • NuSTAR: The First 100 Days (27 Sep 2012)
    Sept. 21, 2012 marked 100 days since NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, launched into space from the L-1011 "Stargazer" aircraft. Since completing its 30-day checkout, the telescope has been busy making its first observations of black holes, super-dense dead stars and the glowing remains of exploded stars.
  • New Fermi Science Tool Released (27 Sep 2012)
    do_gbm.py, a python script to facilitate semi-automated analysis of the GBM data from the Fermi mission, is available from the Fermi User Contributed Tools page. The script allows a fully automated method of analysis using the information provided in the data file headers but also allows the user to customize the analysis. ...
  • Batch Queries Moving to Xamin (26 Sep 2012)
    On October 2, 2012 we will begin sending batch queries to our  Xamin interface.  Internal tests have shown Xamin about twice as fast as the current interface. The switch will be accomplished by internally redirecting batch queries sent to the … Continue reading
  • Fermi Gamma-Ray Burst Monitor has Detected Its 1000th GRB! (24 Sep 2012)
    The Fermi GBM instrument detected its 1000th gamma-ray burst at 21:03 UT on September 21. This milestone was reached almost a year earlier than pre-launch predictions...
  • ISDC Releases OSA 10 (24 Sep 2012)
    The ISDC has released version 10 of its Off-Line Scientific Analysis (OSA) software package. OSA 10 runs on both Linux and recent Mac OS X platforms and contains improvements to the IBIS/ISGRI energy calibration and new JEM-X imaging features. It can be downloaded from the INTEGRAL GOF Data Analysis page or the ISDC.
  • NASA News Release: Chandra Shows That an Enormous Halo of Hot Gas Surrounds the Milky Way (24 Sep 2012)
    Gupta et al. (2012, ApJ, 756, L8) have used NASA's Chandra X-ray Observatory to find evidence that our Milky Way Galaxy is embedded in an enormous halo of hot gas that extends for hundreds of thousands of light years. The estimated mass of the halo of over 10 billion solar masses is comparable to the mass of all the stars in the Galaxy.
  • Reminder: Deadline for Swift Cycle 9 Guest Investigator Program Proposals Is Very Soon! (20 Sep 2012)
    Proposals for the Swift Cycle 9 component of the ROSES-2012 NRA are due no later than 4:30 pm EDT on September 26th.
  • Ritter Catalog of Cataclysmic Binaries (Version 7.18) (20 Sep 2012)
    The latest (7.18: July-2012) versions of the Cataclysmic Binaries Catalog, the Low-Mass X-ray Binaries Catalog and the Binaries Related to CVs Catalog (Ritter & Kolb 2003-2012) are all now available in Browse and (within 1 day) in Xamin.
  • MILLIQUAS - The Million Quasars Catalog (19 Sep 2012)
    The latest version (v3.0, 9 September 2012) of this catalog (from E. Flesch 2012) containing more than one million likely quasars is now available in Browse and Xamin.
  • INTEGRAL IBIS 9-Year Galactic Hard X-Ray Survey Catalog (19 Sep 2012)
    This table of 402 low-Galactic-latitude (|b| < 17 degrees) INTEGRAL/IBIS sources detected in the 17 - 60 keV band above a 4.7-sigma detection threshold (from Krivonos et al. 2012, A&A, 545, A27) is now available in Browse and Xamin.
  • INTEGRAL AO-10 Call for Data Right Proposals (04 Sep 2012)
    ESA has released the 10th Announcement of Opportunity for data right proposals with INTEGRAL. The deadline for proposals is September 28, 2012. Additional information can be found on the ESA INTEGRAL website and on the "Proposals and Tools" page of the INTEGRAL US GOF.
  • Chandra CALDB 4.5.1 released (31 Aug 2012)
    CalDB 4.5.1 released 28 July 2012 and installed at the HEASARC on 31 August 2012. Note Caldb 4.5.1 is not compatible with CIAO versions earlier than CIAO 4.3...
  • Very Large Array ELAIS N1, N2 and N3 Fields 20-cm Source Catalog (28 Aug 2012)
    This table of 867 radio sources detected at 20 cm in 3 northern regions of the European Large-Area ISO Survey (from Ciliegi et al. 1999, MNRAS, 302, 222) is now available in Browse and Xamin.
  • Science Report: Absorption Features in the X-ray Spectrum of an Ordinary Radio Pulsar (27 Aug 2012)
    X-ray spectral features, previously found only in 'exotic' kinds of neutron star, may be more common than previously thought. Kargaltsev et al. (2012, Science, 337, 946) report detecting them in the XMM-Newton spectrum of an ordinary, rotation-powered pulsar, PSR J1740+1000.
  • Science Report: A 200-s Quasi-Periodicity after the Tidal Disruption of a Star by a Dormant Black Hole (27 Aug 2012)
    A 200-s X-ray QPO is reported in the XMM-Newton and Suzaku spectra of Swift J164449.3+573451 a few weeks after Swift detected the X-ray flare of this tidal disruption candidate, coincident with the nucleus of an inactive galaxy (see Reis et al. 2012, Science, 337, 949).
  • Australia Telescope Large Area Survey ELAIS-S1/SWIRE Field 1.4-GHz Source ID & Classifications Catalog (27 Aug 2012)
    This table of 1276 radio sources detected at 1.4 GHz in a region centered on the ELAIS-S1/SWIRE field (from Middelberg et al. 2008, AJ, 135, 1276), and a related table of the 1366 individual components are now available in Browse and Xamin.
  • Suzaku CALDB updated (26 Aug 2012)
    The Suzaku CALDB has been updated for the XIS (update version 20120820)...
  • Australia Telescope Large Area Survey CDF-S 1.4-GHz Source ID & Classifications Catalog (23 Aug 2012)
    This table of 726 radio sources detected at 1.4 GHz in a region centered on the Chandra Deep Field-South field (from Norris et al. 2006, AJ, 132, 2409), and a related table of the 784 individual components are now available in Browse and Xamin.
  • XMM-Newton AO-12 Solicitation Released (21 Aug 2012)
    XMM-Newton observing proposals are solicited in response to the Twelfth Announcement of Opportunity.
  • Australia Telescope Large Area Survey 2.3-GHz Source Catalog (21 Aug 2012)
    This table of 631 radio sources detected at both 1.4 and 2.3 GHz in 2 regions centered on the ELAIS-S1 and CDF-S fields (from Zinn et al. 2012, A&A, 544, A38) is now available in Browse and Xamin.
  • Viewing tool updated (15 Aug 2012)
    As per recently updated mission guidelines, the Sun angle constraint for Suzaku has been updated to 70-115 degrees.
  • NASA Press Release: The Remarkable "Phoenix" Cluster of Galaxies, SPT-CLJ2344-4243 (15 Aug 2012)
    This luminous z=0.596 cluster, discovered by the South Pole Telescope via the S-Z Effect, has a massive, cooling-flow induced starburst in its core and the largest known X-ray luminosity of any cluster, according to a new multi-wavelength (including Chandra) study (McDonald et al. (2012, Nature, 488, 349).
  • Swift-INTEGRAL X-Ray (SIX) Survey Catalog (15 Aug 2012)
    This table of 113 hard X-ray (18 - 55 keV) sources in a 6200 sq. deg. area round the NEP (from Bottacini et al. 2012, ApJS, 201, 34) is now available in Browse and (within a day) in Xamin.
  • Exoplanets Orbit Database (15 Aug 2012)
    This table of (currently) 602 exoplanets with well-determined orbital parameters (from Wright et al. 2011, PASP, 123, 412 and this web site) is now available in Browse and Xamin.
  • Gravitational Wave and X-Ray Mission Architecture Studies Released (13 Aug 2012)
    The Physics of the Cosmos (PCOS) Program Office is pleased to announce the public release of the recent Gravitational Wave and X-Ray mission architecture studies.
  • Viewing tool updated (10 Aug 2012)
    The Viewing tool has been updated to version 3.3. The times of Moon angle constraints are now displayed with 1-hour resolution. For preferred TOO observations with Swift, target-Sun R.A. differences in the 0-4 hour range are now included, as well as >8 hours, as per recently updated mission guidelines.
  • 4th Fermi Symposium Abstract Submission Deadline Is Nearing! (08 Aug 2012)
    Abstracts for presentations to this symposium, to be held in Monterey, California from October 28th to November 2nd, are due no later than August 21st.
  • ACT 2008 148-GHz Data Release (07 Aug 2012)
    The Atacama Cosmology Telescope team has released unbiased ML sky maps, hit count maps, beams, and source masks from their 148-GHz 2008 southern strip data, which cover roughly RA of 21h30m to 8h and Declination -57d to -48d.
  • MILLIQUAS - The Million Quasars Catalog (07 Aug 2012)
    The latest version (v2.10, 6 August 2012) of this catalog (from E. Flesch 2012) containing more than one million quasars is now available in Browse and (within 1 day) in Xamin.
  • Status of Suzaku (3 Aug 2012)
    The gradual decline of solar panels is now impacting Suzaku operations.
  • Swift Simultaneous UV, Optical and X-Ray Observed Quasar Catalog (03 Aug 2012)
    This catalog of 1034 SDSS DR5 quasars with potentially matching Swift UVOT and XRT data (from Wu et al. 2012, ApJS, 201, 10) is now available in Browse and (within 1 day) in Xamin.
  • NASA Press Release: Cry of a Shredded Star Heralds a New Era for Testing Relativity (03 Aug 2012)
    Last year, astronomers using Swift discovered a quiescent black hole in a distant galaxy that erupted after shredding and consuming a passing star. Now Reis et al. (2012, Science) have identified a distinctive X-ray signal in follow-up observations of Swift J1644+57 made by Suzaku and XMM-Newton in the days after the outburst that comes from matter on the verge of falling into the black hole.
  • New Funding Opportunity for Fermi Cycle 6: VERITAS and Fermi Joint Program (31 Jul 2012)
    The VERITAS team and the FSSC are pleased to announce a pilot program for the Fermi Cycle 6 GI Program that supports collaborative efforts to jointly observe high-energy gamma-ray sources with VERITAS and Fermi. Successful proposals will be selected on a competitive basis via the Fermi Cycle 6 proposal review. Details of the program are described in the VERITAS-Fermi Collaborative Agreement.
  • NASA News: NASA X-Ray Mirror Concept Inspired by a Roll of Scotch® Tape (31 Jul 2012)
    The inspiration behind NASA/GSFC scientist Maxim Markevitch's quest to build a low-cost X-ray mirror using a never-before-tried technique comes from an unusual source: a roll of Scotch® tape.
  • NuSTAR Passes Post-Launch Assessment Review (30 Jul 2012)
    NASA's new X-ray mission, the Nuclear Spectroscopic Telescope Array, has passed its PLAR, clearing the way for the mission to enter its science operations phase (Phase "E") in August 2012.....
  • Fermi LAT Aperture Photometry Light Curves (25 Jul 2012)
    The FSSC is pleased to announce the availability of LAT light curves obtained using aperture photometry for all sources in the 2FGL catalog. The light curves have 30 day time resolution and are provided as ASCII files with corresponding plots, and are intended to provide a quick way to inspect gross features in the long-term source behavior. The light curves, plots, and details of the analysis, together with caveats on their use can be found here.
  • WMAP 7-Year Internal Templates and Needlets New Source Catalog (25 Jul 2012)
    This catalog of 1116 WMAP point sources found using a new needlet-based technique (from Scodeller, Hansen & Marinucci 2012, ApJ, 753, 27) is now available in Browse and (within 1 day) in Xamin.
  • Neighboring Galaxies Catalog (23 Jul 2012)
    This catalog of 451 nearby galaxies (D < about 10 Mpc) from Karachentsev et al. (2004, AJ, 127, 2031) is now available in Browse and (within 1 day) in Xamin.
  • Chandra Cycle 14 Accepted Targets Lists Now Available (20 Jul 2012)
    The peer-review recommended targets for Chandra Cycle 14 for regular, large, multicycle and XVP-type proposals, as well as for joint XMM/Chandra & Suzaku/Chandra proposals, have been announced.
  • Australia Telescope-PMN Catalog of Southern Radio Sources at 4.8 & 8.6 Ghz (19 Jul 2012)
    This catalog of 9040 4.8 & 8.4 GHz radio sources detected by the AT at the locations of 8385 previously detected PMN sources (from McConnell et al. 2012, MNRAS, 422, 1527) is now available in Browse and (within 1 day) in Xamin.
  • CFITSIO Updated (19 Jul 2012)
    Version 3.31 released July 18; Several enhancements...
  • Fermi Gamma-ray Burst Monitor News (17 Jul 2012)
    The Fermi GBM data delivery system has recently experienced problems owing to high count rates during periods of intense solar activity. The large number of triggers has caused downlink and processing delays. The GBM instrument team has implemented 2 changes to restore data quality, improve latencies, and ensure consistent delivery.
  • NuSTAR Observes 3C 273 (July 16, 2012) (17 Jul 2012)
    3C 273 simultaneously observed by NuSTAR, XMM, Swift, Suzaku, and INTEGRAL....
  • Swift CALDB Data updated (09 Jul 2012)
    The Swift Caldb has been updated for the SC (update version 20120604) and the UVOTA (update version 20120606).
  • Suzaku CALDB updated (09 Jul 2012)
    The Suzaku CALDB has been updated for the XIS (update version 20120703)...
  • NASA Press release: In McNeil's Nebula, the Young Star V1647 Ori Flaunts Its X-Ray Spots (05 Jul 2012)
    Using data from a trio of orbiting X-ray telescopes - Chandra, Suzaku and XMM-Newton - a team led by GSFC's Kenji Hamaguchi (2012 ApJ, in press) have identified cyclic variations in the X-ray emission from this protostar which they interpret as being caused by the rotational modulation of 2 accretion-powered hot spots on its surface.
  • INTEGRAL AO-10 General Program Results (02 Jul 2012)
    The INTEGRAL AO-10 General Program, as recommended by the Time Allocation Committee (TAC) and approved on the 12th of June by the ESA Director of Science and Robotic Exploration (Prof. Alvaro Gimenez), has been released.
  • Reminder: Astrophysics Theory Program Proposals Deadline Is Nearing! (02 Jul 2012)
    Proposals for the ATP component of the ROSES-2012 NRA are due no later than July 13th.
  • NASA News: NuSTAR Has Obtained Its First-Light Image! (28 Jun 2012)
    NASA's next X-ray mission, the Nuclear Spectroscopic Telescope Array, has completed its initial instrument turn-on and check-out phase and obtained its first (X-ray) light image of a cosmic source, Cygnus X-1. More calibration targets will be observed over the next 2 weeks.
  • Chandra CALDB 4.5.0 released (28 Jun 2012)
    CalDB 4.5.0 released 27 June 2012 and installed at the HEASARC on 28 June 2012. Note Caldb 4.5.0 is not compatible with CIAO versions earlier than CIAO 4.3...
  • NuSTAR First Light (June 28, 2012) (28 Jun 2012)
    NuSTAR observes Cyg X-1, providing the first-ever focused images of the high-energy X-ray universe....
  • XMM-Newton SAS v12.0.1 Released (28 Jun 2012)
    The latest release of the XMM-Newton Science Analysis Software.
  • Chandra: CIAO 4.4.1 released (June 27, 2012) (28 Jun 2012)
    CIAO 4.4.1 released; Sherpa version 2.0, leapsecond library updated, more...
  • NASA Press Release: Hubble and Swift Detect Changes in an Exoplanet's Atmosphere (28 Jun 2012)
    An international team (Lecavelier des Etangs et al. 2012, A&A, in press) using data from Hubble has detected significant changes in the atmosphere of the explanet HD 189733b. The scientists conclude the atmospheric variations occurred in response to a powerful eruption on the planet's host star, an event observed by the Swift XRT 8 hours earlier.
  • VLA Hubble Deep Field 1.4-GHz Radio Source Catalog (27 Jun 2012)
    This catalog of 371 radio sources in the HDF (from Richards 2000, ApJ, 533, 611) which were detected at 1.4 GHz by the VLA is now available in Browse and (within 1 day) in Xamin, as is the catalog of 223 radio sources detected at 610 MHz in the 1-hr XMM/Chandra Survey Field by the GMRT (Moss et al. 2007, MNRAS, 378, 995).
  • Byrd Green Bank Telescope 31-GHz Radio Source Catalog (26 Jun 2012)
    This catalog of 1490 radio sources (from Mason et al. 2009, ApJ, 704, 1433) which were observed at 31 GHz by the GBT 100m dish is now available in Browse and (within 1 day) in Xamin, as is the catalog of 1674 radio sources observed at 31 GHz by the OVRO 40-m telescope 11% (same reference).
  • Sunyaev-Zel'dovich Array 31-GHz Radio Source Catalog (26 Jun 2012)
    This catalog of 209 radio sources detected at 31 GHz by the SZA at flux levels as low as 1 mJy (from Muchovej et al. 2010, ApJ, 716, 521) is now available in Browse and (within 1 day) in Xamin.
  • NASA News: NuSTAR Successfully Deployed Its Mast on June 21 (22 Jun 2012)
    NASA's next X-ray mission, the Nuclear Spectroscopic Telescope Array, deployed its 10-meter long mast at 1:43 pm EDT on June 21 so that the telescope is now in its operational configuration. First light is expected in about five days time.
  • Fermi Blog: The Sound of a Fermi Gamma-Ray Burst (21 Jun 2012)
    Listen to the 'music' of GRB 080916C, as its gamma-ray photon frequencies are translated into musical notes played by different instruments.
  • NuSTAR's mast is unfurled (June 21, 2012) (21 Jun 2012)
    NuSTAR has successfully deployed its lengthy mast, giving it the ability to see the highest energy X-rays in our universe ....
  • A Chandra View of Star Formation in the Central 3 kpc of NGC 2403 (20 Jun 2012)
    This catalog of X-ray data for 58 point sources, 24 SNRs and 47 H II regions in the central part of the nearby SAB(s)cd galaxy NGC 2403 (Yukita et al. 2010, AJ, 139, 1066) is now available in Browse and in Xamin.
  • COSPAR Announces its 2012 Award Winners (19 Jun 2012)
    Honorees include Janet Luhmann of UC Berkeley (winner of the COSPAR Space Science Award), Roger-Maurice Bonnet of ISSI (winner of the COSPAR International Medal), Neil Gehrels of NASA/GSFC (winner of the COSPAR Harry Massey Award) and Robert Lin of UC Berkeley (winner of the Jeoujang Jaw Award).
  • Chandra-COSMOS Radio-Selected Star Forming Galaxies and AGN Catalog (14 Jun 2012)
    This catalog of 115 radio-selected sources from the VLA-COSMOS survey with an X-ray detection in Chandra-COSMOS (Ranalli et al., 2012, A&A, 542, 16) is now available in Browse and in Xamin.
  • NASA News: NuSTAR Successfully Launched on June 13th (13 Jun 2012)
    NASA's next X-ray mission, the Nuclear Spectroscopic Telescope Array, launched on a Pegasus XL rocket which deployed from an L-1011 aircraft flying over the Pacific at 12 noon EDT on June 13. Congratulations to the whole NuSTAR team!
  • NuSTAR is Launched (13 Jun 2012)
    NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) launched into the morning skies over the central Pacific Ocean at 9 a.m. PDT (noon EDT) Wednesday, June 13, 2012, beginning its mission to unveil secrets of buried black holes and other exotic objects. ....
  • NASA News Release: Fermi Detects 4 GeV Gamma Rays from X5.4 Solar Flare (12 Jun 2012)
    During a powerful solar flare on March 7, Fermi's LAT detected the highest-energy (4 GeV) gamma rays ever associated with such an event. The LAT detected gamma-rays from this event for about 20 hours, also a record.
  • NASA News Release: Black Hole Growth Found to Be Out of Sync in 2 Galaxies (12 Jun 2012)
    New evidence from Chandra challenges prevailing ideas about how black holes grow in the center of galaxies. In the galaxies NGC 4342 and NGC 4291 the central supermassive black holes are 10-35 times more massive than expected from the masses of their galactic bulges.
  • Chandra CALDB 4.4.10 released (08 Jun 2012)
    CalDB 4.4.10 released 30 May 2012 and installed at the HEASARC on 08 June 2012. Note Caldb 4.4.10 is not compatible with CIAO versions earlier than CIAO 4.3...
  • Fermi LAT CALDB update (07 Jun 2012)
    The CALDB for the Fermi LAT has been updated to version v9r27p1_20120418...
  • Updated IRAM Plateau de Bure Interferometer Observation Log (06 Jun 2012)
    The latest version of the IRAM PdBI log (Dan and Meri, 1991-2012, IRAM Newsletters) containing 14,511 millimeter observations is now available in Browse and (shortly) in Xamin.
  • XMM-Newton SAS v12.0.0 Released (05 Jun 2012)
    The latest release of the XMM-Newton Science Analysis Software.
  • NASA News: NuSTAR Has Been Shipped to Kwajalein, To Launch on June 13th (05 Jun 2012)
    NASA's next X-ray mission, the Nuclear Spectroscopic Telescope Array, is being ferried from California to Kwajalein Atoll today. It will be launched on a Pegasus XL rocket dropped from an L-1011 aircraft flying over the Pacific on June 13 at 11:30am EDT.
  • NASA News: Chandra Detects Giant Black Hole Being Kicked Out of Its Home Galaxy (05 Jun 2012)
    Astronomers have found strong evidence that a massive black hole is being ejected from its host galaxy at a speed of 3 million miles per hour. New observations from Chandra suggest that the black hole collided and merged with another black hole and received a powerful recoil kick from gravitational wave radiation. See Civano et al. (2012, ApJ, 752, 49) for more details.
  • WISE/2MASS/ROSAT All-Sky Survey (W2R) AGN Sample (04 Jun 2012)
    The W2R sample of 4316 RASS sources identified as AGN based on a statistic using their spatial coincidence with IR sources in the appropriate color range by Edelson and Malkan (2012, ApJ, 751, 52) is now available in Browse and in Xamin.
  • NASA Press Release: X-Ray 'Echoes' Map a Supermassive Black Hole's Environs (31 May 2012)
    Scientists using ESA's XMM-Newton satellite have identified long-sought X-ray echoes of flares of NGC 4151's SMBH that locate the flare sources about 30 light minutes above its accretion disk.
  • ROSAT All-Sky Survey Candidate Isolated Neutron Stars (31 May 2012)
    The list of 147 RASS Bright Source Catalog sources identified by Turner et al. (2010, ApJ, 714, 1424) as candidate INSs, 4 of which are now confirmed INSs and 36 more are still possibly INSs, is now available in Browse and in Xamin.
  • Ritter Catalog of Cataclysmic Binaries (Version 7.17) (29 May 2012)
    The latest (7.17: May-2012) versions of the Cataclysmic Binaries Catalog, the Low-Mass X-ray Binaries Catalog and the Binaries Related to CVs Catalog (Ritter & Kolb 2003-2012) are all now available in Browse and in Xamin.
  • The Ring Galaxy NGC 1291 Chandra X-Ray Point Source Catalog (24 May 2012)
    This catalog of 169 X-ray point sources detected by the Chandra ACIS in NGC 1291 (from Luo et al. 2012, ApJ, 749, 130) is now available in Browse and (shortly) in Xamin.
  • NASA News: NuSTAR Gearing Up for Launch on June 13th (22 May 2012)
    Final pre-launch preparations are underway for the Nuclear Spectroscopic Telescope Array. NuSTAR, a hard X-ray imaging observatory, will be launched on a Pegasus XL rocket, with a target date of June 13, 11:30am EDT.
  • Second Byurakan Survey General Catalog Galaxies Optical Database (17 May 2012)
    The SBS catalog (from Gyulzadyan et al. 2011, Astrophysics, 54, 1) of optical data on 1676 active and star-forming galaxies is now available in Browse and in Xamin.
  • ROSAT Results Archive Sources in PSPC Filter Observations (16 May 2012)
    The 2RXF Catalog of 704 high-confidence sources detected in pointed ROSAT PSPC observations with the Boron filter is now available in Browse and in Xamin. The full 2RXF Catalog containing 2,526 detections, including low-confidence and possibly spurious sources is also available.
  • Fermi LAT Second AGN Catalog (16 May 2012)
    This catalog (from Ackermann et al. 2011, ApJ, 743, 171) of 1121 AGN detected by the Fermi Large Area Telescope in 2 years of scientific operations is now available in Browse and in Xamin, replacing the Fermi LAT First AGN Catalog.
  • Swift CALDB Data updated (11 May 2012)
    The Swift Caldb has been updated for the SC (update version 20120503).
  • Suzaku CALDB updated (11 May 2012)
    The Suzaku CALDB has been updated for the XIS (update version 20120509)...
  • SDSS Unusual Quasars Catalog (09 May 2012)
    This catalog (from Meusinger et al. 2012, A&A, 541, A77) of 1005 SDSS quasars selected to have spectra significantly different than the SDSS composite quasar spectrum is now available in Browse and (shortly) in Xamin.
  • RASS High Galactic Latitude Soft X-Ray Sources II (07 May 2012)
    This catalog (from Beuermann et al. 1999, A&A, 347, 47) of 77 spectrally soft X-ray sources with count rates CR from 0.11 to 0.5 ct/s, supplementing the 397 similar sources with CR > 0.5 in Thomas et al. 1998, A&A, 335, 467), is now available in Browse and in Xamin.
  • Reminder: Astrophysics Data Analysis Program (ADAP) Proposals Deadline Is Nearing! (07 May 2012)
    Proposals for ADAP, part of the ROSES-2012 NRA, are due no later than May 18th.
  • Physics of the Cosmos Program Analysis Group Workshop This Summer in DC (03 May 2012)
    Announcing the fourth PhysPAG meeting, a dedicated workshop in Washington, D.C., to be held Aug 14-16. The PhysPAG Executive Committee is the Science Organizing Committee for this workshop and encourages the entire PCOS community to attend. Webcasting will be available for those unable to attend in-person.
  • Observation Log of CoRoT Stellar Targets for Exoplanet Detection (02 May 2012)
    This catalog of observations of 116,820 stars by the CoRoT satellite made as part of its search for exoplanet transits (from the CoRoT team 2012) is now available in Browse and will shortly be in Xamin.
  • Fermi Cycle 5 List of Approved Guest Investigations (02 May 2012)
    The stage-I selection process for the Fermi Cycle 5 Guest Investigator Program has been completed and the list of selected programs is now available. The deadline for stage-II (budget) proposals is June 1, 2012.
  • NASA News: Chandra Sees Remarkable Outburst from an Old Black Hole in M83 (30 Apr 2012)
    An extraordinary outburst produced by a black hole in the nearby galaxy M83 has provided direct evidence for a population of old, volatile stellar black holes. This Chandra discovery, reported by Soria et al. (2012, ApJ, in press), provides new insight into the nature of ULXs, a mysterious class of black holes that can emit in X-rays as much as a million solar luminosities.
  • 10th INTEGRAL Announcement of Opportunity Preliminary Statistics (25 Apr 2012)
    ESA has released preliminary proposal statistics for the 10th Announcement of Opportunity for observing proposals with INTEGRAL. A total of 59 proposals were submitted for a total of 65 Msec of observing time.
  • 2MASS Redshift Survey (2MRS) Catalog (24 Apr 2012)
    The 2MRS Catalog (from Huchra et al. 2012, ApJS, 199, 26) of 44,599 galaxies (97.6% with measured spectroscopic radial velocities) selected from the 2MASS Extended Source Catalog (XSC) - "an unprecedented census of galaxy concentrations within 300 Mpc" - is now available in Browse and in Xamin.
  • Midcourse Space Experiment Ultraviolet Point Source Catalog (20 Apr 2012)
    The catalog of > 47,000 UV point sources detected by the UVISI on the MSX mission (from Newcomer et al. 2004, AFRL-VS-TR-2004-1056) is now available in Browse and in Xamin.
  • CFITSIO Updated (20 Apr 2012)
    Version 3.30; Several enhancements and bug fixes...
  • News Article: IceCube Finds No GRB-Coincident Neutrinos (19 Apr 2012)
    A study published in Nature today by the IceCube Collaboration presents data that disfavor gamma-ray bursts as the only source of the highest energy (> 1 EeV) cosmic rays.
  • Ultraviolet Imaging Telescope Master Pointing Catalog (18 Apr 2012)
    The catalog of 1,481 pointings made by the UIT instrument during the Astro-1 and-2 missions (cf. Stecher et al. 1997, PASP, 109, 584) is now available in Browse and in Xamin.
  • COBE Diffuse Infrared Background Experiment Point Source Catalog (16 Apr 2012)
    The DIRBE Point Source Catalog of 11,788 IR sources (from Smith et al. 2004, ApJS, 154, 673) is now available in Browse and in Xamin.
  • Reminder: INTEGRAL AO-10 Observing Time Proposals Are Due by April 20, 8:00am EDT (12 Apr 2012)
    This ESA announcement solicits proposals for INTEGRAL observations to be carried out in the period from January to December 2013.
  • MAXI Gas Slit Camera High Galactic-Latitude Source Catalog (10 Apr 2012)
    This catalog of 148 X-ray (4-10 keV) sources detected by the MAXI GSC in its first 7 months of operations (from Hiroi et al. 2011, PASJ, 63, S677) is now available in Browse and in Xamin.
  • Ensemble X-Ray Variability Properties of AGN in 2XMMi-DR3 Catalog (09 Apr 2012)
    This catalog of 412 AGN with multiple (2-25) XMM-Newton observations (from Vagnetti et al. 2011, A&A, 536, A84) is now available in Browse and in Xamin.
  • ESA News: The Dark Heart of a Cosmic Collision: Centaurus A (05 Apr 2012)
    XMM-Newton and Herschel have combined forces to create a multiwavelength view of violent events taking place within the giant galaxy Cen A. The new observations strengthen the view that it was created by the cataclysmic collision of 2 older galaxies.
  • NASA News: Launch of NuSTAR Has Been Rescheduled for June (03 Apr 2012)
    The launch of the Nuclear Spectroscopic Telescope Array, NASA's new hard X-ray imaging observatory, on a Pegasus XL rocket is now planned for June.
  • 2012 Einstein Fellow Recipients Announced (03 Apr 2012)
    Congratulations to the twelve Einstein Fellows who have been selected for the 2012 class!
  • MILLIQUAS - The Million Quasars Catalog (03 Apr 2012)
    The latest version (v2.9, 2 April 2012) of this catalog (from E. Flesch 2012) containing more than one million quasars is now available in Browse and will soon be in Xamin.
  • 2012 NASA Astrophysics Senior Review of Operating Missions (03 Apr 2012)
    The report of this panel, which evaluated the scientific productivity of 9 currently operating missions (including Chandra, Fermi, Suzaku, Swift and XMM-Newton) during their extended phases, is now available.
  • Faint Images of the Radio Sky at 20-cm (FIRST) Catalog (03 Apr 2012)
    The latest (2012 Feb 16) version of the FIRST Catalog containing 946,464 20-cm sources (from White et al.) is now available in Browse and Xamin.
  • Swift CALDB Data updated (02 Apr 2012)
    The Swift Caldb has been updated for the SC (update version 20120402).
  • NASA News: Fermi Observations of Dwarf Galaxies Provide New Insights on Dark Matter (02 Apr 2012)
    Scientists working with Fermi data have looked for signals from some of these hypothetical 'dark matter' particles by zeroing in on 10 small, faint galaxies that orbit our own galaxy. Although no signals have been detected, a novel analysis technique applied to 2 years of data from the Fermi LAT has essentially eliminated these particle candidates for the first time.
  • ROSAT Deep X-Ray Radio Blazar Survey (DXRBS) Catalog (02 Apr 2012)
    The full DXRBS catalog of radio-selected FRSQs and blazars which are RASS X-ray sources (from Perlman et al. 1998, AJ, 115, 1253; Landt et al. 2001, MNRAS, 323, 757) is now available in Browse.
  • ROSAT All-Sky Survey Bright Source Catalog Galaxy Identifications (23 Mar 2012)
    This catalog of 1124 optical galaxy entries from the Catalog of Principal Galaxies which match RASS BSC X-ray sources (from Zimmermann et al. 2001, A&A, 378, 30) is now available in Browse.
  • XSPEC 12.7.1b Released (22 Mar 2012)
    Released March 21, 2012. Improves plot_chain with multi-panel plots, plot_chain error handling...
  • Science@NASA Article: Mysterious Objects at the Edge of the Electromagnetic Spectrum (21 Mar 2012)
    NASA's Fermi Gamma-ray Space Telescope is finding hundreds of new objects at the very edge of the electromagnetic spectrum. Many of them have one thing in common: Astronomers have no idea what they are.
  • Swift CALDB Updated (21 Mar 2012)
    The Swift Caldb has been updated for the XRT (update version 20120209).
  • ROSAT All-Sky Survey/FIRST Single Matches Catalog (21 Mar 2012)
    This catalog of 843 FIRST 20-cm sources uniquely matching RASS X-ray sources (from Brinkmann et al. 2000, A&A, 356, 445) is now available in Browse.
  • NASA Press Release: Swift Narrows Down Origin of Important Supernova Class (20 Mar 2012)
    New studies using X-ray and UV data from the Swift satellite provide new insights into the elusive origins of Type Ia supernovae and appear to rule out the red supergiant companion scenario.
  • NASA News: Launch of NuSTAR Has Been Postponed (19 Mar 2012)
    The planned launch of the Nuclear Spectroscopic Telescope Array, NASA's new hard X-ray imaging observatory, has been postponed after a March 15 launch status meeting. The earliest possible launch opportunity is expected to be within the next 2 months.
  • Agenda for RXTE Symposium and Deadline Reminder (17 Mar 2012)
    Agenda for the "16 Years of RXTE" Symposium is now available; deadline for reunion banquet tickets is March 27.
  • Chandra Serendipitous Extragalactic X-Ray Source ID (SEXSI)/Spitzer AGN Catalog (16 Mar 2012)
    This catalog of Spitzer photometric data for 290 hard X-ray selected SEXSI Chandra X-ray sources (from Eckart et al. 2010, ApJ, 708, 584) is now available in Browse.
  • HEASoft 6.12 released (16 Mar 2012)
    Released March 14, 2012; primarily driven by updates to the Swift mission software, but also includes updates to other packages which have been revised to mirror the current development versions in use at the HEASARC......
  • Updated IRAM PdBI and 30-m Telescope Observation Logs (15 Mar 2012)
    The latest versions of both the IRAM PdBI log and the IRAM 30-m dish log (Dan and Meri, 1991-2012, IRAM Newsletters) containing 14,955 and 75,856 millimeter observations, respectively, are now available in Browse.
  • News Article: NuSTAR Aims to Expose the Violent Hearts of Galaxies (15 Mar 2012)
    An article about the soon-to-launch NuSTAR hard X-ray telescope has been published today in Nature.
  • Catalog of High-Mass X-Ray Binaries in Star-Forming Galaxies (15 Mar 2012)
    This catalog of 1055 compact Chandra X-ray sources in a sample of 29 star-forming galaxies (from Mineo et al. 2012, MNRAS, 419, 2095) is now available in Browse.
  • Catalog of Late-Type Stars with Known Rotation Periods and X-Ray Luminosities (13 Mar 2012)
    This catalog of 820 solar and lower-mass stars used to study the rotation-activity relation (from Wright et al. 2011, ApJ, 743, 48) is now available in Browse.
  • 10th INTEGRAL Announcement of Opportunity (12 Mar 2012)
    ESA has released the 10th Announcement of Opportunity for observing proposals with INTEGRAL. The deadline for proposals is April 20, 2012. Additional information can be found on the ESA INTEGRAL website and on the "Proposals and Tools" page of the INTEGRAL US GOF.
  • Reminder: Chandra Cycle 14 Call for Proposals Deadline is Soon! (12 Mar 2012)
    These proposals have to be submitted no later than March 15th at 6:00pm EDT.
  • NASA Press Release: RXTE Captures Thermonuclear Behavior of Unique Neutron Star (09 Mar 2012)
    In October 2010, a neutron star in the globular cluster Terzan 5 erupted with hundreds of X-ray bursts powered by a barrage of thermonuclear explosions on the star's surface. RXTE captured the month-long fusillade of IGR J17480-2446, aka T5X2, in extreme detail, enabling an international team of astronomers to bridge a long-standing gap between theory and observation.
  • NGC 6357/Pismis 24 Optical/IR Counterparts of Chandra X-Ray Sources (08 Mar 2012)
    This catalog of the properties of 643 optical/infrared counterparts to Chandra X-ray sources in the Pismis 24 cluster and the NGC 6357 SFR (from Fang et al. 2012, A&A, 539, A119) is now available in Browse.
  • NGC 1893 Star Cluster Chandra X-Ray Source Catalog (07 Mar 2012)
    This catalog of 1021 X-ray sources detected by the Chandra ACIS towards the 1-2 Myr old NGC 1893 star cluster (from Caramazza et al. 2012, A&A, 539, A74) is now available in Browse.
  • NASA Press Release: Engineers Tuck NuSTAR in its Fairing (Nose Cone) (06 Mar 2012)
    Technicians at Vandenberg AFB have placed the two halves of the fairing around the NuSTAR hard X-ray observatory, already mated to its Pegasus XL rocket, in preparation for its launch later this month.
  • J0916+6348 Field Low-Frequency Radio Source Catalog (05 Mar 2012)
    A catalog of 317 radio sources detected at 3 or more frequencies (either 153, 244, 610 or 1260 MHz by the GMRT, 327 MHz by the WSRT or 1400 MHz by the VLA) in a 7 sq degrees region centered on J0916+6348 (from Sirothia et al. 2009, MNRAS, 392, 1403) is now available in Browse.
  • VLA XMM-LSS Field 325-MHz Radio Source Catalog (01 Mar 2012)
    A catalog of 1220 radio sources and/or components detected at 325 MHz by the VLA in a 15.3 sq deg region of the XMM Large Scale Structure field (from Tasse et al. 2006, A&A, 456, 791) is now available in Browse, as well as a catalog (ibid.) of 725 radio sources and/or components detected at 74 MHz by the VLA in a 132 sq deg region centered on the same field.
  • NASA Press Release: Ultra-Fast Outflows Help Monster Black Holes Shape Their Galaxies (01 Mar 2012)
    A curious correlation between the mass of a galaxy's central black hole and the velocity of stars in the vast, roughly spherical, galactic bulge surrounding it has puzzled astronomers for years. A team led by Francesco Tombesi (NASA/GSFC) has now identified a new type of black-hole-driven outflow that appears to be powerful enough and common enough to explain this link.
  • GMRT XMM-LSS Field 240-MHz Radio Source Catalog (01 Mar 2012)
    A catalog of 571 radio sources and/or components detected at 240 MHz by the GMRT in a 18 sq deg region of the XMM Large Scale Structure field (from Tasse et al. 2007, A&A, 471, 1105) is now available in Browse, as well as a catalog (ibid.) of 1037 radio sources and/or components detected at 610 MHz by the GMRT in a 13 sq deg region of the same field.
  • Suzaku Cycle 7 Target List Available (27 Feb 2012)
    The list of accepted Suzaku Cycle 7 targets is now available.
  • Chandra CALDB 4.4.8 released (24 Feb 2012)
    CalDB 4.4.8 released 23 Feb 2012 and installed at the HEASARC on 24 Feb 2012. Note Caldb 4.4.8 is not compatible with CIAO versions earlier than CIAO 4.3...
  • NASA Press Release: NuSTAR's Mirrors Baked in Zhang's Glass Kitchen (24 Feb 2012)
    For more than a decade, Will Zhang, an astrophysicist at GSFC, has experimented with a new technique for efficiently manufacturing hard X-ray mirrors. 9000 of his mirror segments have been installed in NuSTAR, set to launch on March 21.
  • News Article: CXOM31 J004253.1+411422, an Ultraluminous X-Ray Source in M31, Is a Stellar-Mass Black Hole (24 Feb 2012)
    2 new studies (Kaur et al. 2012, A&A, 538, A49 and Middleton et al. 2012, MNRAS, in press) using data from the Chandra, Swift, Hubble, and XMM-Newton observatories have found that the ULX in Andromeda is a stellar-mass black hole at least 13 times more massive than our sun that formed after a massive star ended its life in a spectacular supernova explosion.
  • GMRT LBDS-Lynx field 150-MHz Radio Source Catalog (23 Feb 2012)
    A catalog of 765 radio sources detected at 150 MHz by the GMRT in a 15 sq deg region of the Leiden-Berkeley Deep Survey Lynx field (from Ishwara-Chandra et al. 2010, MNRAS, 405, 436) is now available in Browse.
  • VVDS-VLA Deep Field 610-MHz and 1.4-GHz Radio Source Catalogs (22 Feb 2012)
    A catalog of 557 radio sources and/or components detected at 610 MHz by the GMRT in the 1 square degree region of the VVDS-VLA deep field (from Bondi et al. 2007, A&A, 463, 519) is now available in Browse, as well as a catalog (Bondi et al. 2003, A&A, 403, 857) of 1103 radio sources and/or components detected at 1.4 GHz by the VLA in the same field.
  • Chandra Press Release: Chandra Finds Fastest Wind from Stellar Mass Black Hole (22 Feb 2012)
    Astronomers using Chandra have clocked the fastest wind yet discovered blowing off a disk around a stellar-mass black hole. The wind velocity of 20 million mph or 0.03c found for IGR J17091-3624 is nearly 10 times higher than the previous record holder.
  • WSRT Galactic Plane 327-MHz Radio Source Catalog (21 Feb 2012)
    A catalog of 3984 small-diameter radio sources detected at 327 MHz by the Westerbork Synthesis Radio Telescope in the Galactic Plane between Galactic Latitudes +42 and +92 degrees (from Taylor et al. 1996, ApJS, 107, 239) is now available in Browse.
  • Updates on RXTE Symposium and Banquet (15 Feb 2012)
    Info on visitor badges, hotel rooms, banquet tickets, and registration. Deadlines are soon!
  • Suzaku CALDB updated (11 Feb 2012)
    The Suzaku CALDB has been updated for the XIS (update version 20120209)...
  • GMRT ELAIS-N1 Field 610-MHz Radio Source Catalog (09 Feb 2012)
    This catalog of 2500 radio sources detected at 610 MHz by the GMRT in a 9 square degree region of the ELAIS-N1 field (from Garn et al. 2008, MNRAS, 383, 75), and a similar catalog (Garn et al. 2009, MNRAS, 397, 1101) of 1310 610-MHz sources in a 6 sq. deg. region of the ELAIS-N2 field, are both now available in Browse.
  • GMRT Lockman Hole 610-MHz Radio Source Catalogs (09 Feb 2012)
    A catalog of 4934 radio sources detected at 610 MHz by the GMRT in a 14 square degree region of the Lockman Hole field (from Garn et al. 2010, BASI, 38, 103), and a previous catalog (Garn et al. 2008, MNRAS, 387, 1037) of 2845 610-MHz sources in the central 5 sq. deg. portion of the LH, are both now available in Browse.
  • NASA Press Release: SNR G350.1-0.3: Remnant of a Supernova Explosion with a Powerful Kick? (02 Feb 2012)
    Vital clues about the devastating ends to the lives of massive stars can be found by studying the aftermath of their explosions. In its more than twelve years of science operations, Chandra has studied many of these supernova remnants sprinkled across the Galaxy, the latest example being its new image of the SNR G350.1-0.3
  • IC 348 Star Cluster Chandra X-Ray Source Catalog 2 (02 Feb 2012)
    This catalog of 290 X-ray sources detected by the Chandra ACIS towards the IC 348 young star cluster (from Stelzer et al. 2012, A&A, 537, A135) is now available in Browse.
  • News Article: Launch Campaign Begins for NASA's Black Hole Hunter, NuSTAR (02 Feb 2012)
    Technicians at Vandenberg AFB have unpacked the Nuclear Spectroscopic Telescope Array, NASA's new hard X-ray imaging spacecraft, and have begun the final checks before its mating with a Pegasus XL launch vehicle and its launch in mid-March.
  • MILLIQUAS - The Million Quasars Catalog (31 Jan 2012)
    The latest version (v2.8, 29 January 2012) of this catalog (from E. Flesch 2012) containing more than a million quasars is now available in Browse.
  • Large Quasar Astrometric Catalog, 2nd Release (31 Jan 2012)
    This catalog which contains cross-identifications, optical, IR and radio data on 187,504 quasars (from Souchay et al. 2012, A&A, 537, A99) is now available in Browse.
  • PIMMS updated to Version 4.5 (30 Jan 2012)
    Includes a minor update of effective area curves for the Chandra instruments, suitable for use for Cycle 14 proposals
  • General CALDB updated (27 Jan 2012)
    Update 27 Jan 2012: added a new leap second, to occur on July 1, 2012, into leapsec_010712.fits file.
  • XSPEC 12.7.0u Released (27 Jan 2012)
    Released Jan 18, 2012. Adds a new tclout option, tclout rerror...
  • Fermi Cycle 5 Proposal Deadline Has Passed (26 Jan 2012)
    As of the Jan 20 deadline, a total of 221 Fermi Cycle 5 Guest Investigator Proposals had been received. The first stage of the Cycle 5 selection process, the scientific peer review, will take place in early Spring, and the results will be announced in the April 2012 timeframe.
  • NASA Press Release: NuSTAR spacecraft has been shipped to Vandenberg AFB for its Upcoming Launch (26 Jan 2012)
    The Nuclear Spectroscopic Telescope Array, NASA's new hard X-ray imaging observatory, will be installed in its Pegasus launcher on Feb 17, ready for its Mar 14 launch.
  • Planck Early Release 30- to 857-GHz Compact Source Catalogs (26 Jan 2012)
    These 9 catalogs of 30-, 44-, 70-, 100-, 143-. 217-, 343-, 545- and 857-GHz radio sources (from the Planck Collaboration 2011, A&A, 536, A7) are now available in Browse.
  • 'Energetic Astronomy: Richard Mushotzky at 65' Conference (24 Jan 2012)
    This conference celebrating Richard Mushotzky's 65th birthday, and covering black holes, AGN, the high-energy astrophysics of galaxies and galaxy clusters, cosmology, and present and future HEA missions, will be held at Annapolis, MD from June 4 to 6.
  • 16 Years of Discovery with RXTE: A Celebration of the Mission (23 Jan 2012)
    Symposium and banquet to commemorate RXTE, March 29-30 at GSFC.
  • Viewing tool updated (20 Jan 2012)
    The Viewing tool has been updated. Since RXTE has been decomissioned, support for it has been removed. Swift's orbital pole constraints and Sun angle limit have also been updated. Previous versions used the spacecraft limit of 46°; this version uses the software limit of 47°.
  • Lockman Hole X-Ray Selected AGN Optical and Infrared Properties Catalog (20 Jan 2012)
    This catalog of optical and IR counterparts of 409 X-ray selected AGN detected by XMM-Newton in the Lockman Hole (from Rovilos et al. 2011, A&A, 529, A135) is now available in Browse.
  • ChaMP/SDSS Nearby Low-Luminosity AGN Catalog (17 Jan 2012)
    This catalog of 107 SDSS DR4 specroscopically-identified galaxies that are also Chandra Multiwavelength Project X-ray sources (from Constantin et al. 2009, ApJ, 705, 1336), is now available in Browse.
  • News Article: Rare Gamma-Ray Star Twins Discovered by New Method (13 Jan 2012)
    A direct search for gamma-ray binaries in the Fermi archive has revealed the newfound system 1FGL J1018.6-5856. See the research paper in Science magazine for full details.
  • ARK Password Change Required (12 Jan 2012)
    Due to new NASA IT security policies, all ARK passwords must be changed by 11:59pm EST, January 24th, 2012. Failure to do so will result in your ARK account being disabled. Please change your ARK account password as soon as possible.
  • RXTE Completes Mission Operations (12 Jan 2012)
    After 16 years of amazing discoveries, the RXTE mission was decommissioned on January 5, 2012.
  • FINAL RXTE CALDB update (11 Jan 2012)
    FINAL PCA breakdown history and SAA history file CALDB update for the RXTE mission (update 10 Jan 2011)...
  • RCW 38 Star-Forming Cluster Chandra X-Ray Source Catalog 2 (11 Jan 2012)
    This catalog of 536 X-ray sources detected by Chandra ACIS towards the RCW 38 star-forming cluster, together with a a catalog of 624 young stellar objects in RCW 38 identified using Spitzer and Chandra data (both from Winston et al. 2011, ApJ, 743, 166), are now available in Browse.
  • Press Release: Chandra and ACT Find Largest Galaxy Cluster in Early Universe (11 Jan 2012)
    An exceptional galaxy cluster, the largest seen in the distant universe, has been found by Chandra and the Atacama Cosmology Telescope, thanks to its Sunyaev-Zel'dovich effect on the CMB.
  • RXTE Helps Pinpoint Launch of 'Bullets' in a Black Hole's Jet (11 Jan 2012)
    RXTE researchers pinpoint ejection time of superfast knots of gas from black hole system.
  • Press Release: Fermi Explores New Energy Extremes (10 Jan 2012)
    Fermi is extending its view of the high-energy sky into a largely unexplored energy range. Today, the Fermi team announced its first census of energy sources in this new realm. "Before Fermi, we knew of only 4 discrete sources above 10 GeV, all of them pulsars," said David Thompson, an astrophysicist at GSFC. "With the LAT, we've found hundreds, and we're showing for the first time just how diverse the sky is at these high energies."
  • News Article: NASA Turns off Aging Rossi X-Ray Timing Explorer (10 Jan 2012)
    NASA decommissioned RXTE last week, ending a 16-year mission that gave researchers glimpses of the inner workings of black holes and neutron stars.
  • Fermi Cycle 5 Proposal Deadline is Soon (05 Jan 2012)
    Reminder: Fermi Cycle 5 Guest Investigator Proposals are due on January 20, 2012. Please refer to the proposals page for details on how to prepare and submit a proposal. We look forward to your participation in Fermi mission Cycle 5.
  • Sloan Digital Sky Survey I/II Cataclysmic Variables Catalog (05 Jan 2012)
    The catalog of 285 CVs with spectra from SDSS I/II (from Szkody et al. 2011, AJ, 142, 181 and 7 previous papers) is now available in Browse.
  • XSPEC 12.7.0t Released (04 Jan 2012)
    Released Jan 3 2012. Fix for a crash which may occur when attempting to plot data for a spectrum which contains no noticed channels...
  • Archive of Chandra Cluster Entropy Profile Tables (ACCEPT) Catalog (04 Jan 2012)
    The catalog of the radial entropy profile fits to the Chandra data for 240 clusters of galaxies (from Cavagnolo et al. 2009, ApJS, 182, 12) is now available in Browse.
  • The RXTE Mission is Approaching the End of Science Operations (3 Jan 2012)
    After nearly 16 years of discovery, the RXTE mission is approaching the end of science operations; the last day of science observations will be January 3, 2012.
  • News Article: Vatican Using FITS to Preserve Manuscripts (21 Dec 2011)
    The Vatican is using the Flexible Image Transport System (FITS) to preserve 1800-year old manuscripts in a digital format readable by next-generation computers. (The HEASARC hosts the FITS Support Office and Bill Pence of the HEASARC chairs the IAU FITS Working Group).
  • RXTE Detects "Heartbeat" of Smallest Black Hole Candidate (21 Dec 2011)
    May be less than three solar masses.
  • INTEGRAL AO-9 Data Right Proposals approved (19 Dec 2011)
    The ESA Director of Science and Robotic Exploration, Prof. Alvaro Gimenez, has approved the recommendation of the Time Allocation Committee (TAC) for AO-9 data rights proposals.
  • The First Fermi GBM Gamma-Ray Burst Catalog (19 Dec 2011)
    The catalog of GRBs detected by the Fermi GBM is now available in Browse. It contains the general, temporal and spectral properties of nearly 500 GRBs seen in Fermi's first 2 years of operations. More detailed explanations of the catalog contents will be appearing in upcoming journal papers.
  • Chandra: CIAO 4.4 released (December 15, 2011) (16 Dec 2011)
    CIAO 4.4 released; new acis_find_afterglow identifies cosmic-ray afterglows and hot pixels for TIMED mode observations, more...
  • Chandra CALDB 4.4.7 released (16 Dec 2011)
    CalDB 4.4.7 released 15 Dec 2011 and installed at the HEASARC on 16 Dec 2011. Note Caldb 4.4.7 is not compatible with CIAO versions earlier than CIAO 4.3...
  • Chandra Cycle 14 Call for Proposals Has Been Released (15 Dec 2011)
    The deadline for Cycle 14 proposals to be submitted is 2012 March 15.
  • XMM-Newton X-ray Source Catalog of the Core of the Cygnus OB2 Association (15 Dec 2011)
    The catalog of 199 X-ray sources detected by XMM towards this massive SFR (from Rauw 2011, A&A, 536, A31) is now available in Browse.
  • Press Release: RXTE Detects 'Heartbeat' Of the Smallest Known Black Hole Candidate, IGR J17091-3624 (15 Dec 2011)
    An international team has identified a candidate for the smallest-known black hole using data from RXTE. The evidence comes from a specific type of X-ray pattern, nicknamed a "heartbeat" because of its resemblance to an EKG. The pattern until now has been recorded in only one other black hole system, GRS 1915+105.
  • Science Article: A Gas Cloud on its Way towards the SMBH at the Galactic Center (14 Dec 2011)
    Gillessen et al. (2011, Nature, in press) report that a dense cloud of 3 Earth masses will get as close as 36 light hours to the Galactic supermassive black hole Sgr A* in Summer 2013, potentially triggering a surge in its X-ray emission.
  • Press Release: Fermi shows that the Tycho SNR Emits High-energy Gamma Rays (14 Dec 2011)
    After more than 2.5 years of observations, the Fermi LAT shows an unresolved region of GeV emission associated with the remnant of Tycho's Supernova: Giordano et al. argue this emission is due to pion production from relativistic protons colliding with ambient protons.
  • Coma Cluster of Galaxies VLA 1.4-GHz Source Catalog (14 Dec 2011)
    This catalog of 1202 1.4-GHz sources detected by the Very Large Array in 2 0.5 square degree fields in the Coma cluster (from Miller et al. 2009, AJ, 137, 4436) is now available in Browse.
  • Interruption to RXTE Planned Observation Schedule (14 Dec 2011)
    Gyro anomaly disrupted planned observations on Dec. 1-2
  • Concepts for Future High-Energy Astronomy Missions (09 Dec 2011)
    Many of the new high-energy astronomy mission concepts that will be discussed at this week's PCOS-sponsored Workshop on X-Ray Mission Architectural Concepts are described here.
  • XMMAO (XMM-Newton Accepted Targets) Table (09 Dec 2011)
    The latest version of the table of accepted XMM-Newton targets, updated to include AO-11 results, is now available in Browse.
  • ASCA Elliptical Galaxies, Groups and Clusters of Galaxies Catalog (08 Dec 2011)
    This catalog of observed and derived properties of 313 extended systems observed by ASCA (from Fukazawa et al. 2004, PASJ, 56, 965) is now available in Browse.
  • XMM-Newton AO-11 Results Released (07 Dec 2011)
    The list of XMM-Newton observing proposals accepted by the AO-11 Observing Time Allocation Committee is now available.
  • RXTE CALDB updated (06 Dec 2011)
    PCA breakdown history and SAA history file updated for the PCA (update 05 Dec 2011)...
  • XSPEC 12.7.0r Released (06 Dec 2011)
    Released Dec 5 2011. When using C-stat, if spectra with no backgrounds and different exposures and/or areascales are collected into the same data group, the renorming operation would miscalculate. Patch 12.7.0r fixes this...
  • New HEASARC Archive Xamin Interface (05 Dec 2011)
    Xamin, the HEASARC's powerful new interface to its archive and catalog holdings, is now available for general use. Xamin's web and batch interfaces allow users unprecedented capabilities for queries, correlations, data uploads, and plotting. Give it a spin and let us know what you think as we continue to develop this new tool.
  • Bootes Field GMRT 153-MHz Radio Source Catalog (02 Dec 2011)
    This catalog of 598 153-MHz sources detected by the Giant Metrewave Radio Telescope in the NOAO Boötes field (from Intema 2011, A&A, 535, A38) is now available in Browse.
  • NICER/SEXTANT team chosen NASA/GSFC Innovators of the year (02 Dec 2011)
    Goddard technologist Keith Gendreau and the NICER/SEXTANT team were named this year's "Innovators of the Year." The Goddard Office of the Chief Technologist bestows the award annually on technologists who exemplify the best in R&D.
  • Asiago Supernova Catalog (01 Dec 2011)
    The latest version of this catalog (the 2011-Nov-13 Version) containing data on 5769 supernovae from 1885 through Nov 3, 2011 is now available in Browse.
  • HEASoft 6.11.1 released (28 Nov 2011)
    Released November 22, 2011; updates to the Suzaku mission software, and an update to the Ximage utility which has been revised to mirror the current development version in use at the HEASARC.....
  • Science Article: Fermi Detection of a Luminous Gamma-ray Pulsar in a Globular Cluster (28 Nov 2011)
    The Fermi Collaboration et al. (2011, Science, 334, 1107) describe the Fermi detection of a gamma-ray-luminous millisecond pulsar (MSP) in NGC 6624 and argue that it has the largest magnetic field and is the youngest MSP ever detected.
  • Science Article: A Cocoon of Freshly Accelerated Cosmic Rays Detected by Fermi in the Cygnus Superbubble (28 Nov 2011)
    Ackermann et al. (2011, Science, 334, 1103) describe the Fermi detection of 1-100 GeV gamma rays from a 50-pc wide "cocoon" of freshly accelerated cosmic rays in the Cygnus Superbubble.
  • Chandra COSMOS (C-COSMOS) Survey Photometric Redshift Catalog (23 Nov 2011)
    This catalog providing photometric redshifts for 1694 Chandra X-ray sources in the COSMOS field (from Salvato et al. 2011, ApJ, 742, 61), as well as the XMM-Newton COSMOS Survey Photometric Redshift Catalog providing photometric redshifts for 1735 XMM sources (from the same reference), are both now available in Browse.
  • Lambda Ori Cluster XMM-Newton X-Ray Source Catalog (21 Nov 2011)
    This catalog of 167 X-ray sources (and their optical/IR identifications) towards the Lambda Ori Cluster (from Franciosini & Sacco 2011, A&A, 530, A150) is now available in Browse.
  • An INTEGRAL view of the high-energy sky (the first 10 years) (14 Nov 2011)
    The 9th INTEGRAL workshop will take place from October 15-19, 2012, in Paris.
  • Press Release: Swift's UV/Optical Telescope Catches Asteroid YU55 Flyby (14 Nov 2011)
    As asteroid 2005 YU55 swept past Earth in the early morning hours of Wednesday Nov. 9, the telescopes on Swift joined professional and amateur astronomers around the globe in monitoring the fast-moving space rock. The unique ultraviolet data will aid scientists in understanding the asteroid's surface composition.
  • Swift CALDB Data updated Again (10 Nov 2011)
    The Swift Caldb has been updated for the SC (update version 20111031).
  • Ultraluminous X-Ray Sources in Nearby Galaxies Catalog (10 Nov 2011)
    This catalog of 107 candidate ULXs, i.e., sources with X-ray luminosities > 10^39 erg/s, in nearby (within 14.5 Mpc) galaxies (from Swartz et al. 2011, ApJ, 741, 49) is now available in Browse.
  • Swift CALDB Data updated (09 Nov 2011)
    The Swift Caldb has been updated for the UVOTA (update version 20111031).
  • Suzaku CALDB updated (09 Nov 2011)
    The Suzaku CALDB has been updated for the XIS (update version 20111109)...
  • The OGIP Format for 2-d (Image) Point Spread Function Datasets updated (09 Nov 2011)
    The CALDB document "The OGIP Format for 2-d (Image) Point Spread Function Datasets" (CAL/GEN/92-027) has been updated. The update version is 11 Nov 2011...
  • Reminder: Suzaku AO-7 Proposals Deadline Is Near! (08 Nov 2011)
    The deadline for Suzaku AO-7 proposals from US-based observers is Thursday November 10th at 4:30pm EST.
  • MILLIQUAS - The Million Quasars Catalog (07 Nov 2011)
    The latest version (v2.7, 05 November 2011) of this catalog (E. Flesch 2011) containing more than a million quasars is now available in Browse.
  • Chandra CALDB 4.4.6 released (07 Nov 2011)
    CalDB 4.4.6 released 13 Sep 2011 and installed at the HEASARC on 07 Nov 2011. Note Caldb 4.4.5 is not compatible with CIAO versions earlier than CIAO 4.3...
  • Press Release: Fermi Finds Youngest Millisecond Pulsar and 9 Other New Pulsars (03 Nov 2011)
    An international team has used Fermi to discover a surprisingly powerful millisecond pulsar that challenges existing theories about how these objects form. Another team has located 9 new Fermi gamma-ray pulsars using improved analysis techniques, bringing the total number detected by Fermi to more than 100.
  • XMM-Newton Bright Serendipitous Source (XBS) Survey AGN X-Ray Spectral Properties Catalog (03 Nov 2011)
    This catalog of derived X-ray spectral properties of 305 AGN from the XBS Survey (from Corral et al. 2011, A&A, 530, A42) is now available in Browse.
  • Ritter Catalog of Cataclysmic Binaries (Version 7.16) (02 Nov 2011)
    The latest (7.16: 29-Sep-2011) versions of the Cataclysmic Binaries Catalog, the Low-Mass X-ray Binaries Catalog and the Binaries Related to CVs Catalog (Ritter & Kolb 2003-2011) are all now available in Browse.
  • Fermi Science Analysis Environment Updated (02 Nov 2011)
    A new version (v9r23p1_20111101) of the Fermi Science Tools was released. This version improves memory management of gtsrcmaps ...
  • XSPEC 12.7.0p,q Released (02 Nov 2011)
    Patches 12.7.0p and q were released 28-Oct-2011...
  • Call for Proposals for Fermi Cycle 5 (02 Nov 2011)
    The CfP to participate in the Fermi Cycle 5 GI Program has been issued by NASA HQ as an amendment to the ROSES-2011 NRA. Please refer to the Fermi SSC Proposals page for more details and to obtain a copy of the Fermi Cycle 5 NRA text.
  • Fermi Sun-Pointing Event (31 Oct 2011)
    The Fermi observatory entered a sun-pointing attitude on Friday, October 21st at 06:02 UT and resumed normal data-taking at 10:43 UT the same day. The mode change was in response to an inconsistency in attitude solutions on board the spacecraft after the end of a scheduled nadir observation. The operations team has established that this was unlikely to be due to a hardware problem on the observatory and are investigating improvements to operations to prevent this in the future.
  • 2XMMi/SDSS Galaxy Cluster Survey 1st Cluster Sample Catalog (26 Oct 2011)
    This catalog of 175 X-ray-selected galaxy clusters and groups in the SDSS footprint (from Takey et al. 2011, A&A, 534, A120) is now available in Browse.
  • Press Release: Multiwavelength Observations of RCW 86 Help Solve Ancient Supernova Mystery (24 Oct 2011)
    New IR observations from Spitzer and WISE combined with Chandra and XMM X-ray data of the SN 185 remnant show that it was formed by a Type Ia event in a hollowed-out cavity...
  • NICER helping to Educate the Next Generation of Scientists (24 Oct 2011)
    Student involvement in NICER
  • News Article: ROSAT Re-enters over South-East Asia (24 Oct 2011)
    The German Aerospace Center and NASA have confirmed the defunct Roentgen Satellite, or ROSAT, has met its doom, most likely somewhere over SE Asia. German officials have said that the reentry occurred some time between 9:45 p.m. and 10:15 p.m. EDT on Saturday night (Oct 22).
  • XMM-COSMOS X-Ray Selected Type-2 AGN Catalog (24 Oct 2011)
    This catalog of 255 X-ray-selected Type-2 AGN from the XMM-COSMOS Survey (from Lusso et al. 2011, A&A, 534, A110) is now available in Browse.
  • MCXC: A Meta-Catalog of X-Ray Detected Clusters of Galaxies (21 Oct 2011)
    This meta-catalog of 1743 X-ray detected galaxy clusters (from Piffaretti et al. 2011, A&A, 534, A109) combining and homogenizing data from 12 previous such catalogs is now available in Browse.
  • Press Release: Fermi Finds 600 'Mysterious' Sources in the Sky (19 Oct 2011)
    The Fermi team recently released the second catalog of gamma-ray sources detected by their satellite's Large Area Telescope (LAT). Of the 1873 sources found, nearly 600 are complete mysteries.
  • M31 Deep XMM-Newton Survey X-Ray Source Catalog (18 Oct 2011)
    This catalog of 1948 X-ray sources detected towards M31 (from Stiele et al. 2011, A&A, 534, A55) is now available in Browse.
  • An All-Sky Catalog of Bright M Dwarfs (12 Oct 2011)
    This catalog of 8889 proper-motion-, color- and magnitude-selected M dwarf stars (Lépine & Gaidos 2011, AJ, 142, 138) is now available in Browse.
  • XSPEC 12.7.0o Released (12 Oct 2011)
    Version 12.7.0o released 11-Oct-2011; adds the new attribute Fit.covariance, which holds (in a tuple) the covariance matrix values from the most recent fit to PyXspec...
  • Suzaku CALDB updated (10 Oct 2011)
    The Suzaku CALDB has been updated for the XIS (update version 20110930)...
  • Swift CALDB Data updated (10 Oct 2011)
    The Swift Caldb has been updated for the SC (update version 20110930) and the XRT (update version 20110915).
  • Press Release: VERITAS has detected pulsed very-high-energy (>100 GeV) gamma-ray emission from the Crab pulsar (07 Oct 2011)
    This surprising detection by the Very Energetic Radiation Imaging Telescope Array System of Cerenkov telescopes challenges existing pulsar emission mechanisms: see Science 2011, 334, 69 for full details.
  • S254-S258 Star-Forming Complex Chandra X-Ray Point Source Catalog (07 Oct 2011)
    This catalog of 364 X-ray point sources detected towards the S254-S258 complex (from Mucciarelli et al. 2011, A&A, 533, A121) is now available in Browse.
  • XMM-Newton AO-11 Solicitation Closed (07 Oct 2011)
    XMM-Newton Eleventh Announcement of Opportunity Closed.
  • IC 10 XMM-Newton and Chandra X-Ray Point Source Catalog (05 Oct 2011)
    This catalog of 101 X-ray sources detected towards the IC 10 starburst galaxy (from Wang et al. 2005, MNRAS, 362, 1065) is now available in Browse.
  • M101 XMM-Newton X-Ray Point Source Catalog (04 Oct 2011)
    This catalog of 108 X-ray sources detected towards M101 (from Jenkins et al. 2005, MNRAS, 357, 401) is now available in Browse.
  • Press Release: Space Telescopes Reveal Secrets of Mrk 509's Turbulent Black Hole (30 Sep 2011)
    A fleet of spacecraft including XMM-Newton, INTEGRAL, Chandra, Hubble and Swift has uncovered unprecedented details in the surroundings of the supermassive black hole in Mrk 509: huge bullets of gas being driven away and a corona of very hot gas above the disk of matter falling into the black hole.
  • Reminder: XMM-Newton AO-11 Guest Observer Proposals Deadline is Approaching! (29 Sep 2011)
    Proposals for this observing opportunity solicited by ESA are due no later than Friday October 7th, 12:00 UT.
  • NASA Selects NICER For Concept Study (29 Sep 2011)
    NASA has selected 11 science proposals, including the Neutron star Interior Composition ExploreR (NICER), for evaluation as potential future science missions. The proposals outline prospective missions to study the interior of neutron stars, Earth's atmosphere, the sun, the Milky Way galaxy, and Earth-like planets around nearby stars.
  • RXTE Special Session at January 2012 AAS Meeting: Abstract Deadline (28 Sep 2011)
    Submit abstracts for the special poster session by October 5.
  • Concepts for the NASA Gravitational-Wave Mission (27 Sep 2011)
    NASA and its Physics of the Cosmos (PCOS) Program are soliciting information through this Request for Information (RFI) pertaining to potential gravitational-wave missions. Specifically, NASA is seeking information that can be used to develop concepts that meet some or all of the scientific objectives of the Laser Interferometer Space Antenna (LISA) mission.
  • 3rd EUVE Right Angle Program Catalog (27 Sep 2011)
    This catalog of 86 EUV sources detected in 1999 and 2000 (from Christian 2002, AJ, 124, 3478) is now available in Browse.
  • PIMMS updated to Version 4.4 (22 Sep 2011)
    Includes support for NuStar. It also includes updated effective area curves for ASTRO-H as well as an initial estimate of the grade branching ration for SXS (the accuracy of which is under investigation)
  • Reminder: Swift Cycle 8 Guest Investigator Proposals Deadline is Very Soon! (21 Sep 2011)
    Proposals for this opportunity, part of ROSES-2011, are due no later than September 28th, 4:30pm EDT.
  • Press Release: Star Blasts Its Planet with X-rays (19 Sep 2011)
    A nearby star, CoRoT-2a, is pummeling its companion planet with a barrage of X-rays 100,000 times more intense than the Earth receives from the Sun. New data from Chandra and ESO's VLT suggest this high-energy radiation is evaporating about 5 Megatons of matter from the planet every second, illustrating the difficult survival path for some planets.
  • RXTE CALDB updated (18 Sep 2011)
    PCA breakdown history and SAA history file updated for the PCA (update 17 Sep 2011)...
  • Press Release: Fermi's Latest Gamma-ray Census Highlights Cosmic Mysteries (16 Sep 2011)
    Every three hours, the Fermi Gamma-ray Space Telescope scans the entire sky and deepens its portrait of the high-energy universe. Each year, the satellite's scientists reanalyze all of the data it has collected, exploiting updated analysis methods to tease out new (relatively steady) sources.
  • ANS Ultraviolet Photometry Point Source Catalog (15 Sep 2011)
    The catalog of 3573 point sources observed and detected by the ANS UV instrument (Wesselius et al. 1982, A&A, 49, 427) is now available in Browse.
  • Swift CALDB Data updated (15 Sep 2011)
    The Swift Caldb has been updated for the SC (update version 20110831).
  • Suzaku CALDB updated (15 Sep 2011)
    The Suzaku CALDB has been updated for the XIS (update version 20110913) and the HXD (update version 20110913)...
  • MILLIQUAS - The Million Quasars Catalog (14 Sep 2011)
    The latest version (v2.6, 10 September 2011) of this catalog (E. Flesch 2011) containing more than a million quasars is now available in Browse.
  • Interruption to RXTE Planned Observation Schedule (14 Sep 2011)
    An anomaly disrupted planned observations from Sept. 9-13
  • Concepts for the Next NASA X-ray Astronomy Mission (13 Sep 2011)
    NASA and its Physics of the Cosmos (PCOS) Program are soliciting information through this Request for Information (RFI) pertaining to potential X-ray astronomy missions. Specifically, NASA is seeking information that can be used to develop concepts that meet some or all of the scientific objectives of the International X ray Observatory (IXO).
  • XSPEC 12.7.0k Released (13 Sep 2011)
    Version 12.7.0k released 13-Sep-2011; For PyXspec only. This improves the output of the Model.folded() class method for the case where there are ignored channels...
  • XSPEC 12.7.0j Released (08 Sep 2011)
    Version 12.7.0j released 07-Sep-2011; Fix needed to allow gain fit parameters to be used along with custom energy arrays supplied by the energies command...
  • Suzaku AO-7 Proposals Due on Nov 10, 2011 (1 Sep 2011)
    The AO-7 Call for Proposals has been released. The deadline for US-based observer is 4:30 pm EST on Nov 10, 2011.
  • Press Release: Chandra Finds Nearest Pair of Supermassive Black Holes (01 Sep 2011)
    Astronomers using Chandra have discovered the first pair of supermassive black holes near the center of a spiral galaxy (NGC 3393) similar to the Milky Way. Approximately 160 million light years from Earth, this pair is the nearest known example of such a phenomenon.
  • XSPEC 12.7.0h Released (25 Aug 2011)
    Version 12.7.0h released 25-Aug-2011; Fix for PyXspec only...
  • XMM-Newton AO-11 Solicitation Released (23 Aug 2011)
    XMM-Newton observing proposals are solicited in response to the Eleventh Announcement of Opportunity.
  • Suzaku Conference Presentations Online (22 Aug 2011)
    The PDF versions of the oral presentations at the "Exploring the X-ray Universe" conference are now available.
  • Faint Images of the Radio Sky at Twenty Cm Source Catalog (22 Aug 2011)
    The latest (16 July 2008) version of the FIRST Catalog containing 816,331 radio sources together with GSC-2, SDSS and 2MASS counterparts is now available in Browse.
  • 10C Survey 15.7-GHz Source Catalog (17 Aug 2011)
    The 10C catalog (from the AMI Consortium. 2011, MNRAS, 415, 2708) of 1897 15.7-GHz radio sources found in a 27 sq. deg. area using the Arcminute Microkelvin Imager Large Array is now available in Browse.
  • Swift CALDB Data updated (12 Aug 2011)
    The Swift Caldb has been updated for the SC (update version 20110801), the UVOTA (update version 20110731) and the XRT (update version 20110725).
  • Suzaku CALDB updated (12 Aug 2011)
    The Suzaku CALDB has been updated for the XIS (update version 20110804)...
  • 2011 Senior Review of NASA Astrophysics Archives (10 Aug 2011)
    The report of this panel, which evaluated the scientific productivity, technical status, data dissemination, future plans and budgets of the HEASARC and the 5 other NASA astrophysics archives, is now available.
  • Press Release: Testing the Multi-verse Theory (09 Aug 2011)
    The theory that our universe is contained inside a 'bubble', and that multiple alternate universes exist each inside their own bubbles, making up the 'multi-verse', has been tested by a group of scientists through comparison of their new CMB simulations with WMAP data.
  • Cep B/OB3 SFR Chandra Point Source Optical/IR IDs Catalog (05 Aug 2011)
    This catalog of optical and IR information on 431 Chandra ACIS-I X-ray sources detected in the Cep B molecular cloud and nearby Cep OB3b association (from Getman et al. 2009, ApJ, 699, 1454) is now available in Browse.
  • RXTE CALDB updated (04 Aug 2011)
    PCA breakdown history and SAA history file updated for the PCA (update 04 Aug 2011)...
  • RXTE Special Session at January 2012 AAS: Schedule and Details (04 Aug 2011)
    Invited talks and poster session scheduled for Tuesday @AAS Meeting in Austin
  • Updated IRAM PdBI and 30-m Telescope Observation Logs (02 Aug 2011)
    The latest versions of both the IRAM PdBI log and the IRAM 30-m dish log (Dan and Meri, 1991-2011, IRAM Newsletters) containing 14,529 and 73,613 mm observations, respectively, are now available in Browse.
  • Fermi Science Analysis Environment Updated (01 Aug 2011)
    A new version (v9r23p1_20110726) of the Fermi Science Tools is now available. The tools have been updated to use the Pass 7 instrument response functions...
  • Fermi LAT CALDB update (01 Aug 2011)
    The CALDB for the Fermi LAT has been updated to version v9r23p1_20110726...
  • Reminder: Important HEAD Meeting Deadline Is Near! (01 Aug 2011)
    The deadline for both early registration and late abstract submission for the September HEAD Meeting is Friday August 5th.
  • Chandra Deep Field-South 4-Megasecond Survey Main Source Catalog (29 Jul 2011)
    This catalog of 740 Chandra ACIS-I X-ray sources detected in 3.872 Ms in the Chandra Deep Field-South (from Xue et al. 2011, ApJS, 195, 10) is now available in Browse.
  • Press Release: Chandra Images Gas Flowing Towards Black Hole in NGC 3115 (27 Jul 2011)
    The flow of hot gas toward a black hole has been clearly imaged for the first time in X-rays. These Chandra observations of the black hole at the center of the large galaxy NGC 3115 will help us tackle two of the most fundamental problems in modern astrophysics: how do black holes grow and how does matter behave in their intense gravity?
  • GALPROP now included in Astro-Update (27 Jul 2011)
    GALPROP is a numerical code for calculating the propagation of relativistic charged particles and the diffuse emissions produced during their propagation. It's now included in Astro-Update. The current version is 54.0.572.
  • BeppoSAX Wide-Field Camera Unbiased X-Ray Source Catalog (26 Jul 2011)
    The catalog (from Capitanio et al. 2011, ApJS, 195, 9) of 404 WFC X-ray sources found using an algorithm optimized for faint persistent sources is now available in Browse.
  • Large Observatory for X-Ray Timing (LOFT) Science Meeting (21 Jul 2011)
    LOFT is a newly proposed ESA X-ray timing mission to study matter near black hole event horizons and in neutron stars. A meeting on LOFT science will be held in Amsterdam from Oct 26-28, with registration and abstracts due by Sep 10.
  • XSPEC 12.7.0f Released (21 Jul 2011)
    Version 12.7.0f released July 21, 2011; New features for PyXspec...
  • MILLIQUAS - The Million Quasars Catalog (21 Jul 2011)
    The latest July 2011 version (v2.5) of this catalog (E. Flesch 2011) containing more than a million quasars is now available in Browse.
  • Asiago Supernova Catalog (19 Jul 2011)
    The latest version of this catalog (2011-Jul-17 Version) containing data on 5674 supernovae from 1885 through July 1, 2011 is now available in Browse.
  • Suzaku Data Analysis Guide Version 4.0 Online (18 Jul 2011)
    This version include significant updates compared to the previous version (3.2) of the "ABC" Guide.
  • Chandra Cycle 13 Accepted Targets Lists Now Available (17 Jul 2011)
    The peer-review recommended targets for Chandra Cycle 13, including joint XMM/Chandra & Spitzer/Chandra ones, have been announced.
  • ROSES-2011 Amendment 16 about the Swift Cycle 8 GI Program Has Been Released (14 Jul 2011)
    There will be a Swift Cycle 8 Guest Investigator proposal solicitation in ROSES-2011, with proposals due by September 28.
  • Second Fermi LAT (2FGL) Catalog Released (12 Jul 2011)
    The 2nd Catalog of Fermi-LAT sources, 2FGL, based on the first two years of LAT science data, has been released. The catalog is provided as a FITS table and as PDF files, and is accompanied by important caveats, as well as a draft of the paper describing the details of the catalog preparation. The 2FGL catalog represents a major milestone and is a great accomplishment of the international Fermi-LAT team. The 2FGL table is also available in Browse.
  • Collinder 69 Cluster XMM-Newton Source Catalog (11 Jul 2011)
    The catalogs of 164 X-ray sources detected towards the young star cluster Collinder 69 and of optical, IR and membership data for 205 counterparts (both from Barrado et al. 2011, A&A, 526, A21) are now available in Browse.
  • Updated Version of the INTEGRAL Observing Program (11 Jul 2011)
    The recently updated (to include AO-9 programs) INTEGRAL Observing Program table of targets is now available in Browse.
  • INTEGRAL AO-9 General Program Results (11 Jul 2011)
    The INTEGRAL AO-9 General Program, as recommended by the Time Allocation Committee (TAC) and approved on the 5th of July by the ESA Director of Science and Robotic Exploration (Prof. Alvaro Gimenez), has been released.
  • Swift CALDB Data updated (05 Jul 2011)
    The Swift Caldb has been updated for the SC (update version 20110705). This release is the same as the 20110630 release, but fixes a problem with the file names in the caldb.indx file...
  • Swift, Suzaku and RXTE CALDBs updated (01 Jul 2011)
    The Suzaku CALDB has been updated for the XRT, XIS and HXD (update version 20110630); the Swift CALDB has been updated for the Spacecraft (SC) data (update 20110630); and the RXTE PCA caldb has also been updated (also update 20110630).
  • Chandra CALDB 4.4.5 released (01 Jul 2011)
    CalDB 4.4.5 released 30 June 2011; includes upgrades that were installed in Standard Data Processing at the CXC on 28 June 2011, under CalDB version 4.4.4, including a number of upgraded PCAD ALIGN files that CIAO users do not use. Installed at HEASARC 01 July 2011. Note Caldb 4.4.5 is not compatible with CIAO versions earlier than CIAO 4.3...
  • The Recent Problem With the RXTE Ground System Has Been Fixed (01 Jul 2011)
    The recent problem with the RXTE ground system has been fixed, and RXTE resumed normal operations at about 01:00 UT July 1, 2011.
  • RXTE Operations Team Having Trouble Conducting the Usual Contacts with the Spacecraft (30 Jun 2011)
    On June 30, 2011, RXTE operations team started having trouble conducting the usual contacts with the spacecraft.
  • Fermi Press Release: "Odd Couple" Binary Makes Dual Gamma-Ray Flares (29 Jun 2011)
    In December 2010, a pair of mismatched stars whisked past each other at a distance closer than Venus's from the sun. The system LS 2883/PSR B1259-73 consists of a hot and massive star with a compact fast-spinning pulsar in a 3.4 year period orbit. A team who used Fermi to observe the 2010 periastron reports that the system displayed fascinating and unanticipated gamma-ray activity.
  • 2nd Fermi Asian Network (FAN) Workshop (29 Jun 2011)
    The deadline for registration for this Fermi workshop to be held in Hsinchu, Taiwan (Aug 1-5) is June 30th.
  • XMM-Newton Slew Survey Source Catalogs (Version 1.5) (29 Jun 2011)
    The updated versions of the XMM Slew Survey "Clean" and "Full" source catalogs are now available in Browse.
  • XSPEC 12.7.0e Released (28 Jun 2011)
    Version 12.7.0e released June 27, 2011 - updates ATOMDB files to version 2.0.1.
  • RXTE Special Session at the January 2012 meeting of the American Astronomical Society (AAS) (22 Jun 2011)
    Invited talks and a poster session at the Austin, TX meeting.
  • Tempo2 added to Astro-Update (21 Jun 2011)
    The pulsar timing package Tempo2 has been added to Astro-Update. The current version is 1.11
  • Press Release: Chandra Finds Massive Black Holes Common in Early Universe (16 Jun 2011)
    Using the deepest X-ray image ever taken, astronomers have found the first direct evidence that massive black holes were common in the early universe. Chandra's discovery shows that very young black holes grew more aggressively than previously thought, in tandem with the growth of their host galaxies.
  • Omega Centauri Chandra X-Ray Point Source Catalog (14 Jun 2011)
    This catalog of 180 Chandra ACIS-I X-ray sources detected towards the globular cluster Omega Cen (from Haggard et al. 2009, ApJ, 697, 224) is now available in Browse.
  • Updates to RXTE Software, including Improved Calibration Tool (14 Jun 2011)
    xpcaarf and faxbary updates in new FTOOLS v6.11 release
  • Chandra Carina Complex Project Point Source Catalog (10 Jun 2011)
    This catalog of 14,369 Chandra ACIS-I X-ray sources detected towards the Great Nebula in Carina (from Broos et al. 2011, ApJS, 194, 2) is now available in Browse.
  • XSPEC 12.7.0a Released (10 Jun 2011)
    Version 12.7.0 released June 8, 2011 as part of HEASoft 6.11; many new enhancements - try PyXspec v0.9 beta...
  • Fermi Summer School Advances Fermi Science (10 Jun 2011)
    Students at the Fermi Summer School in Lewes, Delaware have been busy learning Fermi data analysis and the science of the high energy gamma-ray sky. Most of the presentations have been made available online to assist all users of Fermi data. For more information on the Fermi Summer School, look here.
  • Chandra Carina Complex Project Naive Bayes Classifier Source Classes (09 Jun 2011)
    This catalog of source classifications for 14,368 Chandra ACIS-I X-ray sources detected towards the Great Nebula in Carina (from Broos et al. 2011, ApJS, 194, 4) is now available in Browse.
  • HEASoft 6.11 released (09 Jun 2011)
    Released June 8, 2011; primarily driven by updates to the Swift and Suzaku mission software, but also includes updates to several packages which have been revised to mirror the current development versions in use at the HEASARC....
  • Suzaku CALDB updated (09 Jun 2011)
    The Suzaku CALDB has been updated for the XIS (update version 20110608)...
  • Swift CALDB Data updated (09 Jun 2011)
    The Swift Caldb has been updated for the SC (update version 20110531) and the XRT (update version 20110513)...
  • MILLIQUAS - The Million Quasars Catalog (07 Jun 2011)
    The latest June 2011 version (v2.4) of this catalog (E. Flesch 2011) containing more than a million quasars is now available in Browse.
  • Fermi LAT CALDB updated (27 May 2011)
    The Fermi LAT caldb has been updated to version v9r23p1...
  • New Fermi Science Tools Release (v9r23p1) (25 May 2011)
    A new version of the Fermi Science Tools is now available. This version includes bug fixes as well as support for improved instrument response functions including in-flight corrections to the PSF and has a correction to the effective area. The release notes are available here.
  • Press Release: Chandra Observes Ramp Up of 'Supernova Factory' in Carina Nebula (24 May 2011)
    Chandra's extraordinarily sharp X-ray vision has detected over 14,000 stars in this region, revealed a diffuse X-ray glow, and provided strong evidence that supernovae have already occurred in this massive complex of young stars.
  • CFITSIO Updated (17 May 2011)
    Version 3.28; The main change in this release is an improved image compression method for floating-point FITS images...
  • Update on the Status and Future of RXTE (17 May 2011)
    Plans for the future of the RXTE mission.
  • BBC Article: Fermi Gamma-Ray Image Updates 'Extreme Universe' View (13 May 2011)
    The Fermi space telescope has yielded the most detailed gamma-ray map of the sky - representing the Universe's most violent and extreme processes. Fermi's newest results, as well as the map, were described at the Third Fermi Symposium in Rome this week.
  • Press Release: Fermi Spots Gamma-Ray 'Superflares' from the Crab (12 May 2011)
    The Crab Nebula SNR has erupted in an enormous flare 5 times more powerful than any flare previously seen from this object. On April 12, Fermi first detected the outburst, which lasted 6 days.
  • Gliese Catalog Stars with Accurate Coordinates and 2MASS Cross-Identifications (12 May 2011)
    This catalog (Stauffer et al. 2010, PASP, 122, 885) containing data on over 4,000 mostly nearby stars from the Gliese and Woolley catalogs is now available in Browse.
  • OCRA-p Observations of CRATES sources at 30 GHz (11 May 2011)
    This catalog (Peel et al. 2011, MNRAS, 410, 2690) containing data on 605 radio sources from 1.4-30 GHz is now available in Browse.
  • Catalog of Open Cluster Data (10 May 2011)
    The COCD catalog (Kharchenko et al. 2005, A&A, 438, 1163) containing data on 513 Galactic open clusters and 7 compact associations and also its first extension (Kharchenko et al. 2005, A&A, 440, 403) with 130 more clusters are both now available in Browse.
  • ROSES-2011 ADAP Proposals Deadline is Now May 20th (06 May 2011)
    Proposals for the ROSES-2011 Astrophysics Data Analysis Program are now due by May 20th. The deadline was extended to give additional time to proposers in areas affected by the recent tornados.
  • Swift CALDB Data updated (05 May 2011)
    The Swift Caldb has been updated for the SC (update version 20110430)...
  • RXTE CALDB updated (05 May 2011)
    PCA breakdown history and SAA history file updated for the PCA (update 03 May 2011)...
  • Press Release: Gravity Probe B Confirms Einstein's General Relativity (04 May 2011)
    The Gravity Probe B mission has confirmed two key predictions derived from Albert Einstein's general theory of relativity, the geodetic effect - the warping of space and time around a gravitational body - and frame-dragging - the amount a spinning object pulls space and time with it as it rotates.
  • Storms Affect Fermi GBM Data Processing and Delivery (03 May 2011)
    Due to the storms in the southeast US, data from the GBM instrument is currently not being processed or posted to the Fermi SSC. Communication of real time burst locations via GCN notices continues unhindered. Data processing and delivery of new and backlogged files will resume once power is restored, which is estimated to occur anywhere from mid next week to 15-30 days hence.
  • Fermi Cycle 4 List of Approved Guest Investigations (02 May 2011)
    The phase-1 selection process for the Fermi Cycle 4 Guest Investigator Program has been completed and the list of selected programs is available. A total of 213 proposals were received in response and 85 have been selected by NASA Headquarters on the basis of scientific peer-review evaluation.
  • Press Release: Swift and Hubble Probe Asteroid Collision Debris (28 Apr 2011)
    Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened and was sporting short-lived plumes. Follow-up data from the Swift UVOT instrument and HST showed these changes likely occurred after Scheila was struck by a much smaller asteroid, ejecting 660,000 tons of dust.
  • Chandra CALDB 4.4.3 released (28 Apr 2011)
    CalDB 4.4.3 released 26 April 2011; patch upgrade. installed at HEASARC 28 April 2011. Note Caldb 4.4.3 is not compatible with CIAO versions earlier than CIAO 4.3...
  • XMM-Newton ESAS Updates for SAS v11.0.1 (28 Apr 2011)
    The latest release of the XMM-Newton Extended Source Analysis Software.
  • Asiago Supernova Catalog (26 Apr 2011)
    The latest version of this catalog (2011-Apr-17 Version) containing data on 5609 supernovae from 1885 through Spring 2011 is now available in Browse.
  • Science Article: Polarized Gamma-Ray Emission from the Galactic Black Hole Cyg X-1 (22 Apr 2011)
    Laurent et al. (2011, Science, 332, 438) describe the INTEGRAL detection of a highly polarized spectral component in the gamma-ray emission of Cyg X-1 and its probable relation to the jet in this system.
  • Chandra ACIS Survey of M33 (ChASeM33) Final Source Catalog (21 Apr 2011)
    This catalog of 662 Chandra ACIS X-ray sources detected towards the M33 galaxy (from Tüllman et al. 2011, ApJS, 193, 31) is now available in Browse.
  • Suzaku 2011 Conference Web Site Open (19 Apr 2011)
    Abstract deadline is May 31 for the "Exploring the X-ray Universe" conference to be held at SLAC, July 20-22, 2011
  • Viewing tool updated to support Astro-H (19 Apr 2011)
    The Viewing tool has been updated to support the upcoming mission, Astro-H.
  • INTEGRAL ISGRI Four-Year Source Catalog (19 Apr 2011)
    This catalog of identifications and classifications of ISGRI sources detected in INTEGRAL's first 4 years (from Bodaghee et al. 2007, A&A, 467, 585) is now available in Browse.
  • INTEGRAL AO9 Observing Proposals Deadline is Now Past (15 Apr 2011)
    Proposals for INTEGRAL observations to be carried out in 2012 were due before Friday April 15th at 9:00am EDT (15:00 CEST).
  • Ritter Catalog of Cataclysmic Binaries (Version 7.15) (12 Apr 2011)
    The latest (March 2011) versions of the Cataclysmic Binaries Catalog, the Low-Mass X-ray Binaries Catalog and the Binaries Related to CVs Catalog (Ritter & Kolb 2003-2011) are all now available in Browse.
  • RXTE CALDB updated (12 Apr 2011)
    PCA breakdown history and SAA history file updated for the PCA (update 07 Apr 2011)...
  • XSPEC Updated (12 Apr 2011)
    Version 12.6.0ab released April 1, 2011; fixed for using fakeit with the projct component...
  • General Catalog of Variable Stars, April 2011 Version (11 Apr 2011)
    The GCVS catalog (Samus et al. 2011) of all known confirmed variable stars and the latest version of the Suspected Variable Stars Catalog are now available in Browse.
  • Press Release: Break-through Study Confirms Cause of Short GRBs (07 Apr 2011)
    A new supercomputer simulation shows the merger of two neutron stars can naturally produce the magnetic structures thought to power the high-speed particle jets associated with short gamma-ray bursts (GRBs).
  • Press Release: Swift, Hubble and Chandra Join Forces to Observe Unprecedented Explosion (07 Apr 2011)
    NASA's Swift, Hubble Space Telescope and Chandra X-ray Observatory have teamed up to study one of the most puzzling gamma-ray bursts yet observed. More than a week later, X-ray emission continues to repeatedly brighten and fade at its location.
  • Catalog of Kvant TTM/COMIS X-Ray Sources (06 Apr 2011)
    This catalog (from Emelyanov et al. 2000, AstL, 26, 355) of 67 2-30 keV sources detected by TTM/COMIS onboard Kvant is now available in Browse.
  • 6dF Galaxy Survey Final Redshift Release (DR3) Catalog (04 Apr 2011)
    The 6dFGS catalog (Jones et al. 2009, MNRAS, 399, 693) of 124,647 galaxies with measured redshifts is now available in Browse.
  • XMM-Newton SAS v11.0.1 Released (01 Apr 2011)
    The latest release of the XMM-Newton Science Analysis Software.
  • Planck Early Sunyaev-Zel'dovich Detected Cluster Candidates Catalog (30 Mar 2011)
    This Planck catalog (Planck Collaboration 2011, ESA) of 189 SZ cluster candidates and their X-ray counterparts is now available in Browse.
  • Press Release: Chandra Finds Striped Pattern in the X-rays emitted by the Tycho SNR (28 Mar 2011)
    Chandra's discovery of a pattern of X-ray stripes in the Tycho SNR may provide the first direct evidence that such a cosmic event can accelerate particles to energies 100 times higher than the most powerful particle accelerators on earth can.
  • Fermi TOO for Cygnus X-3 (25 Mar 2011)
    A 500 ks TOO pointed mode observation for Cyg X-3 is currently underway. This observation is in response to the recent increase in gamma-ray activity from the source reported in ATel 3233. Any updates or changes to this plan will be announced on on the Fermi-News mailing list.
  • 9th Catalog of Spectroscopic Binary Orbits (SB9) (25 Mar 2011)
    The latest version (v8) of this catalog (Pourbaix et al. 2004-2011) is now available in Browse.
  • Suzaku Shows Clearest Picture Yet of Perseus Galaxy Cluster (24 Mar 2011)
    NASA press release - the temperature and density profile of the cluster has been measured to the virial radius and beyond.
  • XSPEC Updated (22 Mar 2011)
    Version 12.6.0aa released March 21, 2011; fixed for bug when a save file is created while gain parameters AND proportional deltas are in use...
  • Catalog of Chandra X-Ray Point Sources in the W40 Star-Forming Complex (22 Mar 2011)
    This catalog (from Kuhn et al. 2010, ApJ, 725, 2485) of ACIS sources and their 2MASS counterparts in the W40 H II region is now available in Browse.
  • Allen Telescope Array Pi GHz Sky Survey of the Boo Field Source Catalog (18 Mar 2011)
    The PiGSS Boo Field catalog (Bower et al. 2010, ApJ, 725, 1792) of 3.1-GHz radio sources is now available in Browse.
  • Catalog of Chandra X-Ray Sources and Optical/IR counterparts in the Globular Cluster M71 (14 Mar 2011)
    This catalog (from Elsner et al. 2008, ApJ, 687, 1019) of ACIS sources and their candidate counterparts in and around M71 is now available in Browse.
  • CFITSIO Updated (11 Mar 2011)
    Version 3.27; This release contains significant new enhancements, mainly to support new features in the fpack and funpack FITS file compression utility programs ..
  • GALEX/Sloan Digital Sky Survey z=0.5-1.5 QSO Candidates Catalog (10 Mar 2011)
    This catalog (Hutchings & Bianchi 2010, AJ, 140, 1987) of 19,812 QSO candidates selected using GALEX and SDSS is now available in Browse.
  • RXTE CALDB updated (09 Mar 2011)
    PCA breakdown history and SAA history file updated for the PCA (update 08 Mar 2011)...
  • 9th INTEGRAL Announcement of Opportunity (09 Mar 2011)
    ESA has released the 9th Announcement of Opportunity for observing proposals with INTEGRAL. The deadline for proposals is April 15, 2011. Additional information can be found on the ESA INTEGRAL website and on the "Proposals and Tools" page of the INTEGRAL US GOF.
  • Chandra ACIS Survey of Nearby Galaxies X-Ray Point Source Catalog (09 Mar 2011)
    This catalog (J. Liu 2011, ApJS, 192, 10) of 17,559 Chandra point sources is now available in Browse.
  • WSRT 20cm Source Catalog of AKARI North Ecliptic Pole Deep Field (09 Mar 2011)
    This catalog (White et al. 2010, A&A, 517, A54) of 20-cm radio sources is now available in Browse.
  • MILLIQUAS - The Million Quasars Catalog (08 Mar 2011)
    The latest version (v2.3) of this catalog (E. Flesch 2011) containing more than a million quasars is now available in Browse.
  • Swift CALDB Data updated (04 Mar 2011)
    The Swift Caldb has been updated for the SC (update version 20110303)...
  • RXTE Celebrates 15 Years of Discovery (04 Mar 2011)
    RXTE poster commemorates 15 years in orbit.
  • RXTE Resumes Normal Operations (03 Mar 2011)
  • Chandra CALDB 4.4.2 released (02 Mar 2011)
    CalDB 4.4.2 released 01 March 2011; patch upgrade. installed at HEASARC 02 March 2011...
  • RXTE Temporarily Suspends Slewing (02 Mar 2011)
  • XMM-Newton SAS v11 Released (01 Mar 2011)
    The latest release of the XMM-Newton Science Analysis Software.
  • Suzaku Cycle 6 Target List Available (01 Mar 2011)
    The list of accepted Suzaku Cycle 6 targets is now available.
  • The X-ray Universe 2011 (25 Feb 2011)
    The X-ray Universe 2011: Berlin, Germany, 27 - 30 June 2011
  • Press Release: Chandra Finds Superfluid in the Core of the Neutron Star in the Cas A SNR (25 Feb 2011)
    The Chandra X-Ray Observatory has discovered the first direct evidence for a superfluid, a bizarre frictionless state of matter, at the core of a neutron star.
  • Dates and Venue for 2011 X-Ray Astronomy School Announced (23 Feb 2011)
    The next X-Ray Astronomy School will be held in Cambridge, Mass. from August 1st through 5th.
  • ROSES-2011 Has Been Released (23 Feb 2011)
    The ROSES-2011 announcement of opportunity for earth and space science proposals is now available.
  • Reminder: Chandra Cycle 13 Observing Proposals Deadline is Soon! (22 Feb 2011)
    These proposals are due no later than March 15th.
  • MOPEX updated (18 Feb 2011)
    Spitzer's MOsaicker and Point source EXtractor software has been update to version 18.4.9 on Feb 15, 2011...
  • PIMMS updated to Version 4.3 (18 Feb 2011)
    Version 4.3 is identical to version 4.2a except for the Integral JEM-X instrument. Since 2010 October, two near-identical units of JEM-X are operational, but PIMMS continue to provide count rate per single unit. Version 4.3 includes additional lines of screen output to clarify this.
  • Fermi Makes APS's "Top Ten Physics-Related News Stories of 2010" (16 Feb 2011)
    In early November 2010, astronomers at SAO, using observations taken by the Fermi Gamma-ray Space Telescope, announced the surprising discovery of two gigantic bubbles or lobes of gamma-ray-emitting gas surrounding the Milky Way Galaxy.
  • Suzaku CALDB updated (10 Feb 2011)
    The Suzaku CALDB has been updated for the XIS (update version 20110210). This update resolves the incompatibility issue introduced in XIS update 20110118...
  • Problem with Suzaku CALDB update version 20110118 (10 Feb 2011)
    An incompatibility has been identified with the latest version of the Suzaku XIS CALDB (version 20110118). Until this is fixed, Suzaku users should use the previous version of the XIS CALDB (version 20101108). The Suzaku XIS CALDB at the HEASARC is currently using version 20101108 until this incompatibility is resolved.
  • Suzaku CALDB updated (09 Feb 2011)
    The Suzaku CALDB has been updated for the XIS (update version 20110118) ...
  • Swift CALDB Data updated (09 Feb 2011)
    The Swift Caldb has been updated for the SC (update version 20110131), and the UVOTA (update version 20110131)...
  • Contributions Still Being Solicited for the IXO Science Meeting on 'The Present Status and Future Prospects of X-Ray Astronomy' (09 Feb 2011)
    The deadline for contributions for the Rome IXO Meeting (to be held March 14 to 16) has been extended to February 12.
  • Fermi LAT Data Server Is Back Online (04 Feb 2011)
    The Fermi LAT data server is now back online and is up to date. Users may also access the LAT weekly files through the Browse Interface or directly via the FTP area. The Fermi SSC is evaluating other dynamic content and it should be available in the near-future.
  • 2011 Fermi LAT Symposium (03 Feb 2011)
    The 2011 Fermi Symposium will be held in Rome, Italy from May 9-12, 2011.
  • XSPEC Updated (03 Feb 2011)
    Version 12.6.0y released January 31, 2011; writefits tcl script and the tclout error commands fixed...
  • RXTE CALDB updated (03 Feb 2011)
    PCA breakdown history and SAA history file updated for the PCA (update 01 Feb 2011)...
  • Fermi Cycle 4 Proposals (02 Feb 2011)
    The Fermi Cycle 4 proposal submission deadline was on January 21, 2011. A total of 213 guest investigator proposals were received in response the to Cycle 4 NRA. Selections will be announced by NASA HQ in the spring following scientific peer-review evaluation in early April 2011.
  • MILLIQUAS - The Million Quasars Catalog (28 Jan 2011)
    The latest version (v2.2) of this catalog (Flesch 2011) containing more than a million quasars is now available in Browse.
  • IRAM 30-m Single-Dish Telescope Observation Log (27 Jan 2011)
    The log (Dan and Meri, 1991-2010, IRAM Newsletters) containing 22,164 mm observations made by the IRAM 30-m dish in the last quarter of 2009 is now available in Browse as the IRAM30MLOG table.
  • Updated IRAM Plateau de Bure Interferometer Observation Log (26 Jan 2011)
    The latest version of the log (Dan and Meri, 1991-2010, IRAM Newsletters) containing 14,158 mm observations made by the PdBI is now available in Browse as the IRAMPDBLOG table (renamed from IRAMLOG).
  • Change of Dates for IXO Science Meeting: Now Mar 14-16 (25 Jan 2011)
    The IXO Meeting in Rome "to gather together the X-ray astronomical community worldwide to discuss the key science topics of IXO, and to review the discovery space opened by science and technological developments" will now be held March 14 to 16.
  • Press Release: Swift Survey Finds 'Missing' Active Galaxies (21 Jan 2011)
    A team of scientists using data from Swift confirm the existence of a largely unseen population of black-hole-powered galaxies. Their X-ray emissions are so heavily absorbed that only a dozen are known, yet they may represent the 'tip of the iceberg', accounting for at least 20% of all active galaxies.
  • Press Release: Fermi, Swift, RXTE and INTEGRAL Find the Crab Nebula to be Varying at High Energies (12 Jan 2011)
    The combined data from several X-ray and gamma-ray observatories have revealed unexpected changes in the emission from the Crab Nebula, once thought to be the steadiest high-energy source in the sky.
  • Press Release: Andromeda Galaxy's Once and Future Stars (07 Jan 2011)
    During Late 2010, XMM-Newton and Herschel combined forces to show M 31 in a 'new light', with Herschel's IR image showing rings of star formation and XMM-Newton's X-ray image showing dying stars such as X-ray binaries and SNRs.
  • Atacama Cosmology Telescope 2008 Survey Catalog of Extragalactic Sources (07 Jan 2011)
    This catalog (from Marriage et al. 2010, preprint) of 157 extragalactic sources detected by the ACT at 148 GHz is now available in Browse.
  • RXTE CALDB updated (03 Jan 2011)
    PCA breakdown history and SAA history file updated for the PCA (update 01 Jan 2011)...
  • PIMMS updated to Version 4.2a (30 Dec 2010)
    PIMMS updated to version 4.2a Dec 21, 2010. Version 4.2a includes a new set of Chandra effective area curves, suitable for AO-13 proposers, more....
  • IXO Science Meeting to be Held in Rome on March 15-17, 2011 (20 Dec 2010)
    The purpose is "to gather together the X-ray astronomical community worldwide to discuss the key science topics of IXO, and to review the discovery space opened by science and technological developments".
  • Asiago Supernova Catalog (17 Dec 2010)
    The latest version of this catalog (2010-Nov-14 Version) containing data on 5480 supernovae is now available in Browse.
  • Chandra: CIAO 4.3 released (December 15, 2010) (17 Dec 2010)
    CIAO 4.3 released, EDSER sub-pixel algorithm has been implemented as the default in acis_process_events, new tools for use when creating ARF files, more...
  • Exploring the X-ray Universe: Suzaku and Beyond (15 Dec 2010)
    The fourth Suzaku Science Conference will be held at SLAC on July 20-22, 2011.
  • INTEGRAL/ISGRI Catalog of Variable X-ray Sources (14 Dec 2010)
    This catalog (from Telezhinsky et al. 2010, A&A, 522, A68) of hard X-ray sources detected by the INTEGRAL/ISGRI which are considered to be variable is now available in Browse.
  • RXTE CALDB updated (13 Dec 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 13 Dec 2010)...
  • INTEGRAL AO-8 Data Right Proposals approved (13 Dec 2010)
    The INTEGRAL AO-8 Data Right Program, as recommended by the Time Allocation Committee (TAC) and approved on the 23rd of November by the ESA Director of Science and Robotic Exploration (Prof. David Southwood), has been released.
  • "The Sudden Death of the Nearest Quasar" (13 Dec 2010)
    Hanny's Voorwerp is a cloud of ionized gas near the galaxy IC 2497. The degree of ionization of Voorwerp implies that it is irradiated by a powerful quasar, yet none is detected with Suzaku. It is therefore likely that the quasar in IC 2497 has shut off within the last 70,000 years.
  • INTEGRAL IBIS 7-Year All-Sky Survey of Hard X-ray Sources Catalog (09 Dec 2010)
    This catalog (from Krivonos et al. 2010, A&A, 523, A61) of 17-60 KeV sources detected by the IBIS telescope on INTEGRAL is now available in Browse (it replaces the 4-year version).
  • Suzaku CALDB updated (06 Dec 2010)
    The Suzaku CALDB has been updated for the HXD (update version 20101202) and the XIS (update version 20101108) ...
  • Swift CALDB Data updated (06 Dec 2010)
    The Swift Caldb has been updated for the SC (update version 20101130), and the UVOTA (update version 20101130)...
  • SCUBA Legacy Fundamental and Extended Map Object Catalogs (03 Dec 2010)
    This catalog (from Di Francesco et al. 2008, ApJS, 175, 277) of 850- and 450-micron sources detected by the SCUBA instrument on JCMT is now available in Browse.
  • The Fermi Website Is Back Online As Of 12:00 EST Today (03 Dec 2010)
    We apologize for any inconvenience caused by the recent interruption in service to the fermi.gsfc.nasa.gov domain.
  • XMM-Newton AO-10 Results Released (01 Dec 2010)
    The list of XMM-Newton observing proposals accepted by the AO-10 Observing Time Allocation Committee is now available.
  • XMM-Newton AO-10 Accepted Targets Announced (01 Dec 2010)
    The list of XMM-Newton proposals and their associated abstracts which were accepted by the XMM-Newton AO-10 Observing Time Allocation Committee (OTAC) are now available.
  • The Fermi Website (http://fermi.gsfc.nasa.gov) has Been Down Since 11:00 EST Nov 29th (30 Nov 2010)
    We apologize for the inconvenience. Weekly LAT data can still be accessed at http://heasarc.gsfc.nasa.gov/FTP/fermi/data/lat/weekly/, while GBM data can be accessed at http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/ or the HEASARC Browse Interface for Fermi Tables.
  • Suzaku Cycle 6 Now Closed (24 Nov 2010)
    Suzaku Cycle 6 (Stage 1) is now closed. NASA has received 91 proposals for an oversubscription factor of 3.6
  • RXTE Cycle 15 Accepted Program Now Available (24 Nov 2010)
    Results from the RXTE Cycle 15 Open Time Peer Review.
  • Updated RXTE Tools in Latest HEASOFT Release (6.10) (23 Nov 2010)
    HEASOFT 6.10 has updates for some RXTE software.
  • Fermi Science Analysis Environment Updated (22 Nov 2010)
    A new version (v9r18p6) of the Fermi Science Tools is now available. This release is to support the dataclean class in the new proccessed data, fix to gtsrcmaps bug, other enhancements...
  • INTEGRAL mission extended (22 Nov 2010)
    ESA's Science Programme Committee unanimously approved an extension of INTEGRAL operations until 31 December 2012.
  • RXTE Team Updates ASM Color and Lightcurve Data (22 Nov 2010)
    New mission-long lightcurves and removal of spikes due to solar glare.
  • Press Release: Youngest Ever Black Hole Discovered (15 Nov 2010)
    Data from Chandra, Swift, XMM-Newton and ROSAT reveal a bright and steady X-ray source in the remnant of supernova 1979C in the galaxy M 100 which is a likely newly-formed black hole.
  • Westerbork in the Southern Hemisphere (WISH) Source Catalog (12 Nov 2010)
    This catalog (from De Breuck et al. 2002, A+A, 394, 59) of 352-MHz radio sources detected by the WSRT is now available in Browse.
  • Catalog of Optical and NIR Counterparts to Extended Chandra Deep Field-South X-ray Sources (10 Nov 2010)
    This catalog (from Silverman et al. 2010, ApJS, 191, 124 ) of optical and near-IR identifications for E-CDF-S sources is now available in Browse.
  • Press Release: Fermi Gamma-Ray Space Telescope Finds Giant Structure in Our Galaxy (10 Nov 2010)
    Fermi has discovered a dumbbell-shaped structure centered on the Milky Way. This gamma-ray emitting feature spans 50,000 light-years and may be the remnant of an eruption from a supersized black hole at the Galactic Center.
  • Astro-Update Expanded (08 Nov 2010)
    By request, we've added a number of important software packages on Astro-Update - see if your favorites are there (if not let us know)
  • GRBs in the News: Magnetars May Fuel Some Short GRBs (05 Nov 2010)
    The 36-millisecond GRB 090515 caught by the Swift observatory might be one such event in which a magnetar is formed, and then after several minutes collapses into a black hole, according to O'Brien et al. (See also this Nature news report).
  • RXTE CALDB updated (04 Nov 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 03 Nov 2010)...
  • 8C Revised Rees Survey 38-MHz Source Catalog (03 Nov 2010)
    This catalog (from Hales et al. 1995, MNRAS, 274, 447) of 5,859 low-frequency radio sources is now available in Browse.
  • Swift BAT 58-Month Hard X-Ray Survey Source Catalog, Spectra and Light Curves (03 Nov 2010)
    The catalog (from Baumgartner et al. 2010, ApJS, submitted) of 1092 sources detected by the Swift BAT in 58 months of observing is now available.
  • 9C Survey of 15-GHz Sources with the Ryle Telescope (01 Nov 2010)
    The 9C catalog (from Waldram et al. 2003, MNRAS, 342, 915) of 242 radio sources from 3 VSA fields is now available in Browse, as well as the 9C Continued Survey (Waldram et al. 2010, MNRAS, 404, 1005) catalog.
  • 7C Survey Unified Catalog of 151-MHz Sources (29 Oct 2010)
    This catalog (from Hales et al. 2007, MNRAS, 382, 1639) of 43,000+ radio sources is now available in Browse, as well as the 7C Northern Galactic Plane and 7C Low-Declination catalogs.
  • PIMMS updated to Version 4.2 (28 Oct 2010)
    (Updated October 27 2010). Version 4.2 includes a new set of Suzaku effective area curves, suitable for Cycle 6 proposers, and an accompanying update in the code to estimate detection limits for the HXD detectors, more....
  • Fermi LAT CALDB updated (27 Oct 2010)
    Fermi LAT caldb has been updated to version v9r18p6...
  • Press Release: MAXI Discovery and Swift Confirmation of New X-Ray transient (22 Oct 2010)
    Observations by the Japanese MAXI X-ray monitor on the ISS on Oct 17 which detected a bright X-ray source near the Galactic Plane, dubbed MAXI J1409-619, were followed up by a Swift observation on Oct 20 which confirm it is a new Galactic X-ray transient.
  • INTEGRAL Revision 3 Data Available from the HEASARC (19 Oct 2010)
    The HEASARC mirror to the INTEGRAL Public Data Archive now contains INTEGRAL Revision 3 data. A short description of the revision 3 data can be found in the May 2010 ISDC Newsletter.
  • Press Release: What Lies Beneath? Magnetar Enigma Deepens (19 Oct 2010)
    Observations by Chandra, XMM-Newton, Swift, RXTE and Fermi have revealed that a slowly rotating neutron star with an 'ordinary' surface magnetic field strength, SGR 0418+5729, is giving off intense bursts of X-rays and gamma rays, possibly indicating an internal magnetic field much stronger than its surface value.
  • DS9 Updated (18 Oct 2010)
    Version 6.2; add CIRCLE3D region, new frames inherit current smooth params, more ...
  • Fermi Regional Workshops in Fall 2010 (14 Oct 2010)
    To facilitate greater community-wide participation in Fermi science, the Fermi Science Support Center and the Fermi Project are hosting a series of regional workshops this fall in 3 locations across the US.
  • Press Release: Fermi Project Scientists Win Lindsay Memorial Award for Space Science (14 Oct 2010)
    Drs. Julie McEnery and David Thompson received this GSFC award on October 8 for the two years of wide-ranging discoveries in the gamma-ray sky made by the Fermi Gamma-Ray Space Telescope.
  • Catalog of X-ray Luminosities of Early-Type Galaxies (14 Oct 2010)
    This catalog (from O'Sullivan et al. 2001, MNRAS, 328, 461) of ROSAT and Einstein X-ray measurements of E and S0 galaxies is now available in Browse.
  • XMM-Newton AO-10 Solicitation Closed (11 Oct 2010)
    The XMM-Newton tenth Announcement of Opportunity (AO-10) closed on the 8th of October 2010.
  • Catalog of Chandra Point Sources in the Cometary Globule CG 12 (11 Oct 2010)
    This catalog (from Getman et al. 2008, ApJ, 673, 331) of X-ray point sources towards the core and environs of CG 12 is now available in Browse.
  • Catalog of Chandra Point Sources in the LALA Cetus Field (07 Oct 2010)
    This catalog (from Wang et al. 2007, ApJ, 669, 765) of X-ray point sources in the Large Area Lyman Alpha Survey Cetus Field is now available in Browse.
  • Catalog of IR Properties of Young Stellar Objects in Orion (05 Oct 2010)
    This catalog of the infared properties and classification of YSOs in the Orion Nebula Cluster (from Prisinzano et al. 2008, ApJ, 677, 401) is now available in Browse.
  • 2dF QSO Redshift (2QZ) Survey Catalog (05 Oct 2010)
    The 2QZ catalog of results from spectroscopic follow-up observations of color-selected QSO candidates (from Croom et al. 2004, MNRAS, 349, 1397) is now available in Browse.
  • RXTE CALDB updated (05 Oct 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 03 Oct 2010)...
  • Wide Angle ROSAT Pointed Survey (2nd Phase) Clusters Catalog (30 Sep 2010)
    The WARPS-II catalog of clusters of galaxies (from Horner et al. 2008, ApJS, 176, 374) is now available in Browse.
  • Swift CALDB Data updated (30 Sep 2010)
    The Swift Caldb has been updated for the SC (update version 20100930), the UVOTA (update version 20100930) and the XRT (update version 20100802)...
  • HEASoft 6.10 released (30 Sep 2010)
    Released September 28, 2010; primarily driven by updates to the Swift and Suzaku mission software, but also includes updates to several packages which have been revised to mirror the current development versions in use at the HEASARC....
  • The First Year of MAXI: Monitoring Variable X-Ray Sources (28 Sep 2010)
    The deadline for registration and abstract submission for this MAXI workshop in Tokyo (Nov 30-Dec 2) is September 30th.
  • ROSAT All-Sky Survey/Asiago-ESO QSO Survey Catalog (28 Sep 2010)
    This source catalog from a survey for bright quasars (Grazian et al. 2000, AJ, 119, 2540) is now available in Browse.
  • Catalog of Chandra Point Sources in Distant Galaxy Clusters (27 Sep 2010)
    This catalog (from Branchesi et al. 2007, A+A, 462, 449) of X-ray point sources in 18 clusters of galaxies is now available in Browse.
  • PIMMS updated to Version 4.1b (23 Sep 2010)
    (Updated September 21 2010). Version 4.1b includes a new set of XMM-Newton effective area curves suitable for AO-10 proposals...
  • Allen Telescope Array 20-cm Survey (ATATS) Source Catalog (16 Sep 2010)
    This catalog (from Croft et al. 2010, ApJ, 719, 46) of 20-cm sources from a survey of a 690 square degree field for radio transients is now available in Browse.
  • VLA SWIRE Deep Field 20-cm Source Catalog (10 Sep 2010)
    This catalog (Owen and Morrison 2008, AJ, 136, 1889) of 20-cm sources from a survey of a region of the SWIRE Spitzer Legacy Survey is now available in Browse.
  • XSPEC Updated (09 Sep 2010)
    Version 12.6.0s released September 8, 2010; fix for saving correct normalization for correction file...
  • VLA SWIRE Deep Field 90-cm Source Catalog (09 Sep 2010)
    This catalog (Owen et al. 2009, AJ, 137, 4846) of 90-cm sources from a survey of a region of the SWIRE Spitzer Legacy Survey is now available in Browse.
  • Fermi Science Analysis Environment Updated (08 Sep 2010)
    A new version (v9r17p0) of the Fermi Science Tools is now available. This version includes multiple bug fixes as well as improved support for Linux (including Fedora 13, Ubuntu 9.10 and 10.04) and Mac (OSX 10.6 Snow Leopard) operating systems...
  • Suzaku Cycle 6 call for proposals (07 Sep 2010)
    Suzaku Cycle 6 deadline is Nov 19, 2010, both for regular and Key Project proposals.
  • INTEGRAL AO-8 Call for Data Right Proposals (01 Sep 2010)
    ESA has released the 8th Announcement of Opportunity for data right proposals with INTEGRAL. The deadline for proposals is October 8, 2010. Additional information can be found on the ESA INTEGRAL website and on the "Proposals and Tools" page of the INTEGRAL US GOF.
  • VLA 74-MHz Deep High-Resolution Survey Source Catalog (26 Aug 2010)
    This catalog of sources from a 74-MHz survey of a region located near the North Galactic Pole (Cohen et al. 2004, ApJS, 150, 417) is now available in Browse.
  • AT20G/Fermi 1FGL Source Catalog (26 Aug 2010)
    This catalog of AT20G radio sources associated with Fermi-LAT 1-Year Catalog gamma-ray sources (Mahony et al. 2010, ApJ, 718, 587) is now available in Browse.
  • 2011 Einstein Post-Doctoral Fellowship Program (24 Aug 2010)
    The deadline for applications to this NASA-sponsored post-doc program for research related to NASA's Physics of the Cosmos (open to recent PhDs in astronomy, physics and related disciplines) is November 4th.
  • XMM-Newton AO-10 Solicitation Released (24 Aug 2010)
    XMM-Newton observing proposals are solicited in response to the Tenth Announcement of Opportunity.
  • Suzaku CALDB updated (23 Aug 2010)
    The CALDB for the HXD has been updated (update version 20100812) ...
  • WMAP Completes its 9-Year Cosmology Mission (23 Aug 2010)
    WMAP made its last science observations on August 10th, and end-of-mission calibration observations were completed on August 19th. Kudos to the project on a highly successful mission!
  • The Ins and Outs of Black Holes (20 Aug 2010)
    This cross-cutting workshop, which will examine the physics and astrophysics of energy flows in and around black holes, will be held in Annapolis, Maryland from November 15th-17th.
  • Fermi-Swift GRB Data Analysis Workshop (20 Aug 2010)
    This workshop, which will introduce participants to Fermi and Swift GRB data analysis, will be held here in Greenbelt from November 8th-12th.
  • XSPEC Updated (18 Aug 2010)
    Version 12.6.0q released August 18, 2010; fix for incorrect setting of last bin in OGIP 2 background files...
  • Million Quasars Catalog (MILLIQUAS) (18 Aug 2010)
    Version 2.1 of the Million Quasars Catalog (Flesch 2010) is now available in Browse.
  • Eclipsing Pulsar Promises Clues to Crushed Matter (17 Aug 2010)
    Astronomers using RXTE have found the first fast X-ray pulsar to be eclipsed by its companion star.
  • Press Release: Fermi Detects 'Shocking' Surprise - Gamma Rays from a Nova Outburst (12 Aug 2010)
    The Fermi Large Area Telescope detected gamma rays from a nova outburst of the symbiotic binary V407 Cyg over a 15-day period this March.
  • AAVSO International Variable Star Index (VSX) (10 Aug 2010)
    This compendium catalog of variable Galactic stars (from Watson et al. 2006, SASS, 25, 47) is now available in Browse.
  • Small Magellanic Cloud Deep Fields Chandra X-Ray Point Source Catalog (07 Aug 2010)
    This catalog of 394 Chandra sources in the SMC Deep Fields (from Laycock et al. 2010, ApJ, 716, 1217) is now available in Browse.
  • Press Release: NASA's Great Observatories Witness a Galactic Spectacle: the Antennae Galaxies (06 Aug 2010)
    A new image of the colliding Antennae Galaxies, which combines Chandra X-ray Observatory, Hubble Space Telescope optical, and Spitzer Space Telescope infrared data, has been released by NASA's Great Observatories.
  • RXTE CALDB updated (04 Aug 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 04 Aug 2010)...
  • XMM-COSMOS Catalog of Optical and IR Counter-parts to XMM-Newton Sources (03 Aug 2010)
    This catalog of 1797 XMM-COSMOS sources' optical and infrared counterpart properties (from Brusa et al. 2010, ApJ, 716, 348) is now available in Browse.
  • Suzaku CALDB updated (30 Jul 2010)
    The CALDB for the XIS has been updated (update version 20100709), along with an update to the CALDB index file for the XRT ...
  • Swift CALDB Data updated (30 Jul 2010)
    The Swift Caldb has been updated for the SC (update version 20100730)...
  • NGC 2237 Young Stellar Cluster Chandra X-Ray Point Source Catalog (30 Jul 2010)
    This catalog of NGC 2237 Chandra sources and their optical and IR counterparts (from Wang et al. 2010, ApJ, 716, 474) is now available in Browse.
  • Detailed Information on How to Submit Swift Cycle 7 GI Proposals Is Now Available (29 Jul 2010)
    Full details on the Swift Cycle 7 Guest Investigator Program are now available; proposals are due on or before September 29, 2010.
  • LkH-alpha 101 Star Formation Region Chandra X-Ray Point Source Catalog (28 Jul 2010)
    This catalog of LkH-alpha 101 SFR Chandra sources and their IR counterparts (from Wolk et al. 2010, ApJ, 715, 671) is now available in Browse.
  • Chandra Variable Guide Star (VGUIDE) Catalog (26 Jul 2010)
    This catalog of variable stars found among Chandra guide stars (from Nichols et al. 2010, ApJS, 188, 473) is now available in Browse.
  • Galaxy Evolution Explorer Observation Log (20 Jul 2010)
    The GALEX Observation Log is now available in Browse.
  • XSPEC Updated (19 Jul 2010)
    Version 12.6.0l released July 14, 2010; fix to pexriv/bexriv group of models...
  • ROSAT All-Sky Survey-All-Sky Automated Survey Catalog of Eclipsing Binaries (19 Jul 2010)
    This catalog of 807 RASS X-ray sources identified as eclipsing binaries in ASAS (from Szczygiel et al. 2008, AcA, 58, 405) is now available in Browse.
  • Record-Breaking X-Ray Blast Briefly Blinds Swift Observatory (16 Jul 2010)
    On June 21st, the brightest X-ray burst ever detected from beyond our Galaxy's environs temporarily blinded the X-ray detector on NASA's Swift observatory. GRB 100621A is the brightest cosmological X-ray source detected by Swift since it began observing in early 2005.
  • RXTE Cycle 15 Information for Proposers (16 Jul 2010)
    How and when to propose for RXTE Cycle 15.
  • Updated Version of the Chandra Observing Program (15 Jul 2010)
    The recently updated (to include Cycle 12 programs) Chandra Observing Program table of targets is now available in Browse.
  • Chandra Cycle 12 Research Program Announced (13 Jul 2010)
    The lists of accepted GO targets, and of archive, theory and joint proposals recommended by the Chandra Cycle 12 Peer Review panel are now available.
  • Updated Version of the INTEGRAL Observing Program (07 Jul 2010)
    The recently updated (to include AO-8 programs) INTEGRAL Observing Program table of targets is now available in Browse.
  • Asiago Supernova Catalog (2010-06-20 Version) (06 Jul 2010)
    The recently updated version of the Asiago supernova catalog is now available in Browse.
  • XMM-COSMOS Large-Scale Structure Survey Catalog of Optical Identifications (02 Jul 2010)
    This catalog of 487 reliable optical spectroscopic identifications of XMM-Newton LSS sources (from Stalin et al. 2010, MNRAS, 401, 294) is now available in Browse.
  • INTEGRAL AO-8 General Program Results (01 Jul 2010)
    The INTEGRAL AO-8 General Program, as recommended by the Time Allocation Committee (TAC) and approved on the 15th of June by the ESA Director of Science and Robotic Exploration (Prof. David Southwood), has been released.
  • Swift CALDB Data updated (01 Jul 2010)
    The Swift Caldb has been updated for the UVOTA (update version 20100630)...
  • RXTE Homes in on a Black Hole's Jets (1 Jul 2010)
    For decades, X-ray astronomers have studied the complex behavior of binary systems pairing a normal star with a black hole.
  • Swift CALDB Data updated (30 Jun 2010)
    The Swift Caldb has been updated for the SC (update version 20100630)...
  • 8th INTEGRAL Workshop: The Restless Gamma-Ray Universe (29 Jun 2010)
    The deadline for abstract submission for this workshop, to be held in Dublin, Ireland (Sep 27-30), is June 30th.
  • COSPAR Announces its 2010 Award Winners (24 Jun 2010)
    Honorees include Guenther Hasinger (co-winner of the COSPAR Space Science Award) and Harvey Tananbaum (winner of the Royal Society/COSPAR Massey Award).
  • Suzaku CALDB updated (21 Jun 2010)
    The CALDB for the HXD has been updated (update version 20100617) ...
  • Swift CALDB Data updated (21 Jun 2010)
    The Swift Caldb has been updated for the SC (update version 20100528), XRT (update version 20100528) and the UVOTA (update version 20100528)...
  • VLA-COSMOS Project 1.4-GHz Joint Source Catalog (15 Jun 2010)
    This catalog of 2865 radio sources in the central degree of the COSMOS field (from Schinnerer et al. 2010, ApJS, 188, 384) is now available in Browse.
  • The Million Quasar (MILLIQUAS) Catalog, Version 2.0 (2010) (14 Jun 2010)
    Version 2.0 of this catalog of 1,108,117 high-confidence quasars, AGN and BL Lacs (from Flesch 2010, quasars.org) is now available in Browse.
  • 7-Year WMAP 5-Band Point Source Catalog (11 Jun 2010)
    This catalog of 471 WMAP point sources found using a 5-band technique (from Gold et al. 2010, ApJS, in press) is now available in Browse.
  • 7-Year WMAP QVW Point Source Catalog (11 Jun 2010)
    This catalog of 417 WMAP point sources found using a 3-band CMB-free technique (from Gold et al. 2010, ApJS, in press) is now available in Browse.
  • Sloan Digital Sky Survey Quasar Catalog, Seventh Data Release (07 Jun 2010)
    This catalog of 105,783 spectroscopically confirmed quasars (from Schneider et al. 2010, AJ, 139, 2360) is now available in Browse.
  • RXTE CALDB updated (07 Jun 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 07 Jun 2010)...
  • XSPEC Updated (07 Jun 2010)
    Version 12.6.0k released May 26, 2010; tclout modval improvement ...
  • INTEGRAL SPI detector anomaly (07 Jun 2010)
    On May 27, 2010, an anomaly occured for SPI Ge Detector #1.
  • DS9 Updated (07 Jun 2010)
    Version 7.0; 3D visualization, more ...
  • 'Backwards' Black Holes Might Make Bigger Jets (01 Jun 2010)
    New research suggests supermassive black holes that spin backwards (retrograde) compared to their disks might produce more ferocious jets of gas than those that spin forwards (prograde). The results have broad implications for how galaxies and the super-massive black holes that they harbor change over time.
  • Swift Survey Finds "Smoking Gun" of Black Hole Activation (26 May 2010)
    Data from an ongoing survey by the Swift satellite have helped astronomers solve a decades-long mystery about why a small percentage of black holes emit vast amounts of energy.
  • New Fermi GBM Data Analysis Tool (21 May 2010)
    The GBM team has provided a new analysis tool - RMFIT - for GRBs and other GBM data. It will create lightcurves, fit backgrounds, and fit single or multiple spectra for NaI and BGO detectors. RMFIT is not part of the standard Fermi Science Tools, but can be found on the user-contributed Fermi software page along with a tutorial.
  • XSPEC Updated (20 May 2010)
    Version 12.6.0j released May 20, 2010; delcomp bug squashed ...
  • Suzaku "ABC" Guide Version 3.2 now available (17 May 2010)
    Version 3.2 of the Suzauk Data Reduction Guide is now available in HTML, PDF, and ps.gz formats.
  • Swift CALDB Data updated (17 May 2010)
    The Swift Caldb has been updated for the SC (update version 20100430) and the UVOTA (update version 20100430)...
  • DS9 Updated (17 May 2010)
    Version 6.1; simplified windows installation, backup & restore, more ...
  • Fermi Cycle 3 List of Approved Guest Investigations (14 May 2010)
    The phase-1 selection process for the Fermi Cycle 3 Guest Investigator Program has been completed and the list of selected programs is available.
  • AKARI/FIS All-Sky Survey Bright Source Catalog, Version 1.0 (13 May 2010)
    This catalog of 423,071 far-IR point sources (from Yamamura et al. 2010) is now available in Browse.
  • AKARI/IRC All-Sky Survey Point Source Catalog, Version 1.0 (12 May 2010)
    This catalog of 870,973 mid-IR sources (from Ishihara et al. 2010, A+A, 514, A1) is now available in Browse.
  • XSPEC Updated (11 May 2010)
    Version 12.6.0i released May 11, 2010; improvements to calling user-defined Tcl procedure ...
  • XMM-COSMOS Catalog of X-ray Selected Type 1 AGN (07 May 2010)
    This catalog of 545 type 1 AGN (from Lusso et al. 2010, A+A, 512, A34) is now available in Browse.
  • Report of the NASA Astrophysics Division 2010 Senior Review of Operating Missions (06 May 2010)
    The missions in the 2010 Astrophysics Senior Review include Chandra, Swift, XMM-Newton, WMAP, Suzaku, RXTE and INTEGRAL.
  • Gamma-Ray Bursts 2010 Conference (06 May 2010)
    This conference, which will cover recent advances in gamma-ray burst observations and theory, will be held in Annapolis, Maryland on November 1-4, 2010.
  • The Las Campanas Redshift Survey Catalog (05 May 2010)
    The LCRS catalog of galaxies with photometric and spectroscopic measurements (Shectman et al. 1996, ApJ, 470, 172) is now available in Browse.
  • XMM-Newton Slew Survey Source Catalogs (Version 1.4) (04 May 2010)
    The updated versions of the XMM Slew Survey clean and full source catalogs are now available in Browse.
  • RXTE CALDB updated (03 May 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 01 May 2010)...
  • XSPEC Updated (03 May 2010)
    Version 12.6.0h released April 30, 2010; modifications to the behavior of steppar ...
  • Zeldovich Medal for Vito Sguera (03 May 2010)
    On 01 April 2010, the Committee on Space Research (COSPAR) has decided to present the 2010 Zeldovich Medal for COSPAR Scientific Commission E (Research in Astrophysics from Space) to Dr. Vito Sguera (Istituto di Astrofisica Spaziale & Fisica Cosmica, Bologna, Italy).
  • XMM-Newton Serend-ipitous Source Catalog (Version 2XMMi-DR3) (29 Apr 2010)
    The updated version of this catalog of X-ray sources is now available in Browse.
  • XMM-Newton SAS v10 Released (29 Apr 2010)
    The latest release of the XMM-Newton Science Analysis tool.
  • XMM-Newton XSA v6.5 Released (28 Apr 2010)
    The latest release of the XMM-Newton Science Archive tool.
  • Updated Second XMM-Newton Serendipitous Source Catalogue Released (28 Apr 2010)
    A new incremental version (2XMMi-DR3) of the second XMM-Newton EPIC Serendipitous Source Catalogue, 2XMM
  • Updated XMM-Newton Slew Survey Catalogue Released (28 Apr 2010)
    An update to the XMM-Newton Slew Survey Catalogue (Delta-4) is now available
  • ROSAT All-Sky Survey/6dF Galaxy Survey Catalog of X-Ray Selected AGN (22 Apr 2010)
    This catalog of X-ray selected AGN (Mahony et al. 2010, MNRAS, 401, 1151) is now available in Browse.
  • Catalog of MASH and MASH-II Planetary Nebulae (21 Apr 2010)
    This catalog of confirmed and suspected PNe (MASH: Parker et al. 2006, MNRAS, 373, 79; MASH-II: Miszalski et al. 2008, MNRAS, 384, 525) is now available in Browse.
  • ROSAT PSPC Catalog of CMa R1 X-ray Sources (20 Apr 2010)
    This catalog of ROSAT-detected Pre-MS stars (Gregorio-Hetem et al. 2009, A+A, 506, 711) is now available in Browse.
  • RXTE HEXTE Cluster B Update (20 Apr 2010)
    Status of HEXTE Cluster B and software tips for analyzing recent HEXTE data
  • Swift Catches Its 500th Gamma-Ray Burst (19 Apr 2010)
    Swift primarily studies gamma-ray burst (GRBs), the biggest explosions in the cosmos. On April 13, 2010 the spacecraft catalogued its 500th GRB.
  • Veron Catalog of Quasars and AGN (19 Apr 2010)
    The latest (13th) edition of this catalog of quasars, BL Lacs and AGN (Veron-Cetty and Veron 2010, A+A, in press) is now available in Browse.
  • XSPEC Updated (16 Apr 2010)
    Version 12.6.0e released April 15, 2010; initpackage local models tool improvements ...
  • Reminder That Multi-wavelength Coordination with Fermi Observations Is Important (14 Apr 2010)
    The recent TOO for the Fermi mission on 3C 454.3 serves as a reminder of the need for community input on coordinating multi-wavelength observations with Fermi. To publicize any such observations that you plan to make, use the project's multi-wavelength reporting page.
  • HEASARC Servers Have Moved to New Hardware as of Tuesday April 13th (14 Apr 2010)
    The HEASARC web servers moved to new machines running in a virtualized environment on Tuesday April 13th at 8:00am EDT. Please let us know if you encounter any anomalies.
  • XSPEC Updated (08 Apr 2010)
    Version 12.6.0d released April 8, 2010; fix to chi2 calculation in steppar on redshift ...
  • XIMAGE 4.5.1 released (07 Apr 2010)
    Released March 29 2010; released with HEASoft 6.9; various improvements...
  • Fermi Initiates First Approved Target of Opportunity Observation (05 Apr 2010)
    The first approved TOO for the Fermi mission was initiated at 19:38 UTC on April 5, 2010, a 200 ks observation of the current extraordinary outburst of the blazar 3C 454.3. Multi-wavelength observations of this source over the next 3 days are highly encouraged.
  • Swift CALDB Data updated (05 Apr 2010)
    The Swift Caldb has been updated for the SC (update version 20100331)...
  • Fermi Maps the Active Galaxy Cen A's 'Smokestack Plumes' in Gamma-Rays (01 Apr 2010)
    The Fermi Large Area Telescope has resolved high-energy gamma rays from an extended region around Cen A.
  • XSPEC Updated (01 Apr 2010)
    Version 12.6.0b released March 31, 2010; improvements to implementation of fractional systematic errors ...
  • RXTE Discovers Spin Period of New SGR 1833-0832 (31 Mar 2010)
    On March 19, RXTE isolated the spin period of new source SGR 1833-0832.
  • Ritter Catalogs of Cataclysmic, Low-Mass X-Ray and Related Binaries (31 Mar 2010)
    The latest versions (7.13) of the Ritter Catalogs are now available in Browse.
  • XSPEC Updated (30 Mar 2010)
    Version 12.6.0a released March 29, 2010 along with HEASoft 6.9; improvements to plotting capabilities ...
  • HEASoft 6.9 released (30 Mar 2010)
    Released March 29, 2010; primarily driven by updates to the Swift and Suzaku mission software, but also includes updates to RXTE and other packages which have been revised to mirror the current development versions in use at the HEASARC...
  • New calibration of Suzaku/HXD/GSO released (29 Mar 2010)
    The new gain calibration of GSO data extends the usable energy range down to 50 keV.
  • Australia Telescope 20-GHz (AT20G) Survey Source Catalog (29 Mar 2010)
    The AT20G radio source catalog (from Murphy et al. 2010, MNRAS, 402, 2403) is now available in Browse.
  • Updated RXTE Software Now Available (29 Mar 2010)
    Four RXTE tools received minor updates.
  • New M Dwarfs in the Solar Neighborhood Catalog (25 Mar 2010)
    This catalog of M dwarfs selected from a sample of 2MASS and ROSAT correlated sources (from Riaz et al. 2006, AJ, 132, 866) is now available in Browse.
  • M 31 Bulge Chandra X-Ray Point Source Catalog (24 Mar 2010)
    This catalog of Chandra sources (from Voss and Gilfanov 2007, A+A, 468, 49) is now available in Browse.
  • Suzaku CALDB updated (23 Mar 2010)
    The Suzaku CALDB has been updated for the HXD (update version 20100323)...
  • Suzaku CALDB updated (22 Mar 2010)
    The Suzaku CALDB has been updated for the HXD (update version 20100319)...
  • Asiago Supernova Catalog (2010-03-14 Version) (22 Mar 2010)
    The recently updated version of the Asiago supernova catalog is now available in Browse.
  • RHESSI Gamma-ray Burst Catalog (19 Mar 2010)
    This catalog of gamma-ray bursts (from Ripa et al. 2009, A+A, 498, 399) is now available in Browse.
  • 8th INTEGRAL Announcement of Opportunity (17 Mar 2010)
    ESA has released the 8th Announcement of Opportunity for observing proposals with INTEGRAL. The deadline for proposals is April 23, 2010. Additional information can be found on the ESA INTEGRAL website and on the "Proposals and Tools" page of the INTEGRAL US GOF.
  • New Mission to Study Gamma-ray Flashes in Earth's Atmosphere (12 Mar 2010)
    An NSF-funded satellite called Firefly to be launched in 2010 or 2011 will study the strange phenomenon of terrestrial gamma-ray flashes associated with thunderstorms.
  • Mysterious "Cosmic Flow" Tracked Deeper into Universe (10 Mar 2010)
    A new study using the 5-year WMAP results and a large number of galaxy clusters reports that there is a collective motion - dubbed the dark flow - along a path roughly centered on the Centaurus-Hydra direction.
  • RXTE CALDB updated (09 Mar 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 09 Mar 2010)...
  • Fermi Probes "Dragons" of the Gamma-ray Sky (09 Mar 2010)
    A new study shows that less than a third of the extragalactic background arises from what were once considered the most likely sources, viz., black-hole powered AGN.
  • Suzaku Cycle 5 Target List Available (03 Mar 2010)
    The list of accepted Suzaku Cycle 5 targets is now available.
  • Fermi LAT AGN catalog available in Browse (26 Feb 2010)
    The Fermi LAT AGN catalog is now available in Browse...
  • Swift CALDB Data updated (26 Feb 2010)
    The Swift Caldb has been updated for the SC (update version 20100226)...
  • Suzaku CALDB updated (20 Feb 2010)
    The Suzaku CALDB has been updated for the HXD (update version 20100207) and XIS (update version 20100123)...
  • Swift CALDB Data updated (19 Feb 2010)
    The Swift Caldb has been updated for the UVOTA (update version 20100129) and the SC (update version 20100129)...
  • Fermi Gamma-Ray Space Telescope Closes in on Source of Cosmic Rays (16 Feb 2010)
    New images from Fermi show where supernova remnants are emitting radiation a billion times more energetic than visible light, and bring astronomers closer to understanding the source of cosmic rays.
  • SSA22 Field Chandra X-Ray Point Source Catalog (16 Feb 2010)
    This catalog of Chandra sources (from Lehmer et al. 2009, MNRAS, 400, 299) is now available in Browse.
  • RXTE CALDB updated (15 Feb 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 12 Feb 2010)...
  • xTime tool updated (04 Feb 2010)
    xTime has improved support for the Fermi mission.
  • Ultra-Luminous X-ray Sources and Middle-Weight Black Holes (02 Feb 2010)
    Registration and abstract submission for this XMM-Newton Science Workshop, to be held in Villafranca, Spain from May 24-26, is now open.
  • RXTE Team Resolves Inertial-Hold Situation (31 Jan 2010)
    RXTE slewing anomaly is resolved.
  • ChaMPlane Galactic Bulge and Center X-Ray Point Source Catalog (29 Jan 2010)
    This catalog of Chandra sources (from Hong et al. 2009, ApJ, 706, 223) is now available in Browse.
  • Extrasolar Planets (Exoplanets) Encyclopaedia (22 Jan 2010)
    This catalog of exoplanets (based on the Web catalog of Jean Schneider) is now available in Browse.
  • International X-Ray Observatory Science Meeting (22 Jan 2010)
    Registration for the IXO Science Meeting, to be held in Paris, France from Apr 27-29, is now open.
  • Fermi LAT 1-Year Point Source Catalog (21 Jan 2010)
    This catalog of 1400+ gamma-ray sources and associated data products (produced by the Fermi LAT Collaboration) is now available in Browse.
  • Fourth IBIS/ISGRI Soft Gamma-Ray Survey Catalog (21 Jan 2010)
    This catalog of 723 INTEGRAL sources (from Bird et al. 2010, ApJS, 186, 1) is now available in Browse.
  • RXTE HEXTE Cluster B Currently Staring (20 Jan 2010)
    HEXTE Cluster B is currently not rocking.
  • The Million Quasars (Milliquas) Catalog (19 Jan 2010)
    This catalog of 1,000,000+ probable and confirmed QSOs (Flesch 2010) is now available in Browse.
  • DS9 Updated (18 Jan 2010)
    Version 6; Mac OSX, IRAF improvements ...
  • XSPEC Updated (18 Jan 2010)
    Version 12.5.1o; Small fix to calculation of plot emodel/eemodel and eufspec/eeufspec when in setplot wave mode ...
  • CFITSIO Updated (18 Jan 2010)
    Version 3.23; this release contains a number of significant enhancements related to reading and writing compressed FITS files ...
  • Fermi LAT 1-Year Point Source Catalog Released (15 Jan 2010)
    The first catalog of Fermi LAT sources has been released and is available in the form of a FITS table for download. Potential Fermi GIs may find this catalog very useful when preparing Cycle 3 proposals (the deadline is Feb 5).
  • All-Sky Atlas of Radio/X-Ray Associations (ARXA) (14 Jan 2010)
    This catalog of 600,000+ optical objects with radio/X-ray counterparts (Flesch 2010, PASA, 27, in press) is now available in Browse.
  • Swift CALDB Data updated (13 Jan 2010)
    The Swift Caldb has been updated for the SC (update version 20101231), and the UVOTA (update version 20101231)...
  • Swift Cycle 6 Accepted Targets and Proposals Announced (11 Jan 2010)
    The list of proposals and targets recommended by the Swift Cycle 6 Peer Review panel is now available.
  • Fermi Cycle 3 GI Proposal Deadline is Feb 5th (07 Jan 2010)
    Scientists are invited to participate in Fermi's guest investigator science program, with proposals due by Feb 5th, 2010.
  • RXTE CALDB updated (04 Jan 2010)
    PCA breakdown history and SAA history file updated for the PCA (update 04 Jan 2010)...
  • Suzaku Finds "Fossil" Fireballs from Supernovae (31 Dec 2009)
    Studies of two supernova remnants using the Suzaku observatory have revealed high-temperature fireballs that immediately followed the explosions which have retained the imprint of temperatures 10,000 times hotter than the sun's surface.
  • Viewing tool updated (31 Dec 2009)
    The Swift pole constraints have been updated in the Viewing tool. The revised coefficients extrapolate the trend for the calendar year 2010.
  • XMM-Newton AO-9 Results Released (18 Dec 2009)
    The list of XMM-Newton observing proposals accepted by the AO-9 Observing Time Allocation Committee is now available.
  • Chandra: CIAO 4.2 and CALDB 4.2.0 released (December 15, 2009) (17 Dec 2009)
    CIAO 4.2 and CALDB 4.2.0 released, several new CIAO tools, updates to Sherpa, more...
  • Chandra Cycle 12 Call for Proposals Released (15 Dec 2009)
    Scientists are invited to participate in Chandra's science program, with proposals due by March 18th, 2010.
  • Asiago Supernova Catalog (2009-11-29 Version) (09 Dec 2009)
    The recently updated version of the Asiago supernova catalog is now available in Browse.
  • 8th INTEGRAL Workshop (09 Dec 2009)
    The workshop "THE RESTLESS GAMMA-RAY UNIVERSE" will take place in Dublin Castle, Dublin, Ireland, September 27-30, 2010.
  • RXTE Workshop Presentations Now on the Web (08 Dec 2009)
    Presentations from RXTE Workshop held November 5.
  • Chandra/SWIRE Lockman Hole Field X-Ray Source Catalog (08 Dec 2009)
    This Chandra catalog (from Wilkes et al. 2009, ApJS, 185, 433) is now available in Browse.
  • Deadline for Abstracts for SPIE Astronomical Instrumentation 2010 Conference (08 Dec 2009)
    The abstract submission deadline for this meeting (to be held Jun 27-Jul 2) is December 14.
  • Suzaku CALDB updated (07 Dec 2009)
    The CALDB for the HXD has been updated (update version 20091207) ...
  • Updated RXTE Background Software, and other tools Now Available (06 Dec 2009)
    HEASOFT 6.8 has significant updates for RXTE users.
  • Fermi Data Analysis Workshop Series (04 Dec 2009)
    The Fermi Science Support Center will be hosting a series of hands-on data analysis workshops for anyone interested in getting started on Fermi data analysis.
  • Three Suzaku Updates (4 Dec 2009)
    Three Suzaku Updates: PIN Epoch 6, XIS Burst Mode GTI, and New Scripts
  • HEASoft 6.8 released (03 Dec 2009)
    Released December 3, 2009; primarily driven by updates to the Swift and Suzaku mission software, but also includes updates to several packages which have been revised to mirror the current development versions in use at the HEASARC...
  • RXTE CALDB updated (02 Dec 2009)
    PCA breakdown history and SAA history file updated for the PCA (update 02 December 2009)...
  • Even older news.



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