http://heasarc.gsfc.nasa.gov/ High Energy Astrophysics Science Archive Research Center Mon, 20 May 2013 18:15:08 -0400 http://heasarc.gsfc.nasa.gov/Images/objects/heapow/current_thumbnail.jpg http://heasarc.gsfc.nasa.gov/ http://heasarc.gsfc.nasa.gov/docs/xanadu/xspec/issues/issues.html 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 ... 3348f216073260d248521d29a684ee04 Mon, 20 May 2013 13:33:00 -0400 http://heasarc.gsfc.nasa.gov/W3Browse/all/xcs.html 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 (within half a day) <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b>Xamin</b></a>. a21cf0b36f912d0b20c7498575505269 Wed, 15 May 2013 18:00:00 -0400 http://heasarc.gsfc.nasa.gov/W3Browse/all/xmmsscgps.html 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 (within half a day) <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b>Xamin</b></a>. a45d571e517339ffebeeb167a703cfba Wed, 08 May 2013 18:00:00 -0400 http://heasarc.gsfc.nasa.gov/docs/heasarc/caldb/caldb_wotsnew.html#swift_20130507 The Swift Caldb has been updated for the SC (update version 20130507). 89bad0e39661a5c2c155779a81620e0f Tue, 07 May 2013 18:01:00 -0400 http://heasarc.gsfc.nasa.gov/W3Browse/all/ecdfsrssam.html 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 (within half a day) in <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b>Xamin</b></a>. c0266d2e4ae7d9ce46cccba4aec22243 Mon, 06 May 2013 15:00:00 -0400 http://heasarc.gsfc.nasa.gov/W3Browse/all/plancksz.html 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 (within half a day) in <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b> Xamin</b></a>. 528422709e2e5e8d77f24e5f51a2c56f Fri, 03 May 2013 11:00:00 -0400 http://www.nasa.gov/topics/universe/features/shocking-burst.html A record-setting blast of gamma rays from a dying star in a distant galaxy has wowed astronomers around the world. The eruption, which is classified as a gamma-ray burst, or GRB, and designated GRB 130427A, produced the highest-energy light ever detected from such an event. 908bfa7448e78aaab82d48b4af25771c Fri, 03 May 2013 00:00:00 -0400 http://heasarc.gsfc.nasa.gov/W3Browse/all/galextdsc.html 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 (within half a day) <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b>Xamin</b></a>. e54f884d3e3d34975302d5bc111e2cca Wed, 01 May 2013 16:00:00 -0400 http://www.nasa.gov/mission_pages/chandra/multimedia/ngc6240.html 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 (<a href="http://adsabs.harvard.edu/abs/2013ApJ...765..141N"><b>Nardini et al. (2013, ApJ, 765, 141)</b></a>. b8a818adfdff40c0411431560ae6f4e7 Wed, 01 May 2013 09:01:00 -0400 http://heasarc.gsfc.nasa.gov/W3Browse/all/m83xmm.html 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 <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b>Xamin</b></a>. 6073568fdf20be1e19a8f71eae6f7cd7 Tue, 30 Apr 2013 18:00:00 -0400 http://www.nasa.gov/mission_pages/GLAST/news/bullet-dodge.html 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! 1367bfbfa1aca124aa9504899f9f929e Tue, 30 Apr 2013 13:01:00 -0400 http://www.rssd.esa.int/index.php?project=INTEGRAL&page=index 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. c83311221fa2296874349214654c55d3 Thu, 25 Apr 2013 12:15:00 -0400 http://heasarc.gsfc.nasa.gov/docs/heasarc/caldb/caldb_wotsnew.html#fermi_20130424 The CALDB for the Fermi LAT has been updated to version v9r31p1_20130424... 4804cd2cf526b504a3b891221402b6f1 Wed, 24 Apr 2013 17:24:00 -0400 http://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3table.pl?Observatory_xray1=PLANCK&Action=More+Options 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 (within half a day) in <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b> Xamin</b></a>. The remaining PCCS1 tables of higher frequency sources will be available shortly. aa1567be8386f04d1b0c028fe42f8d36 Wed, 24 Apr 2013 14:00:00 -0400 http://fermi.gsfc.nasa.gov/ssc/data/analysis/software Fermi SAE updated to version v9r31p1 on April 24, 2013. This release includes umerous updates and bug fixes ... 9c5a9dec758fea7532143bcd8c241d53 Wed, 24 Apr 2013 11:35:00 -0400 http://heasarc.gsfc.nasa.gov/docs/xanadu/xspec/issues/issues.html 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 ... 323dbaf704a618d20d4d4c6eaffa2d39 Wed, 24 Apr 2013 11:33:00 -0400 http://heasarc.gsfc.nasa.gov/W3Browse/all/rittercv.html The latest (7.19: March-2013) versions of the Cataclysmic Binaries Catalog, the <a href="http://heasarc.gsfc.nasa.gov/W3Browse/all/ritterlmxb.html">Low-Mass X-ray Binaries Catalog</a> and the <a href="http://heasarc.gsfc.nasa.gov/W3Browse/all/ritterrbin.html">Binaries Related to CVs Catalog</a> (Ritter & Kolb 2003-2013) are all now available in Browse and (within half a day) in <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b> Xamin</b></a>. 0824ea6887a5aa3c8b66798976c9418c Fri, 19 Apr 2013 10:09:00 -0400 http://heasarc.gsfc.nasa.gov/W3Browse/all/irampdblog.html 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 (within half a day) <a href="http://heasarc.gsfc.nasa.gov/xamin/xamin.jsp"><b> Xamin</b></a>. eaab6e96c5410b56af14145704070b52 Fri, 19 Apr 2013 10:00:00 -0400 http://hea-www.harvard.edu/RD/ds9/ Version 7.2; new support for loading and saving FITS images, data cubes, mosaics and other image formats, more ... 389aca50a14813f469b74bbdccc733a5 Tue, 16 Apr 2013 15:18:00 -0400 http://www.bbc.co.uk/news/science-environment-22162806 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. 50c7588bca44015e6714e6a622b5678f Tue, 16 Apr 2013 10:01:00 -0400