Latest News Other Resources Archive Information

Access to the catalogs and astronomical archives of the HEASARC

Select an interface or start using our keyword search tool below.

HEASARC Data Access

  • New Xamin Interfaces
  • Xamin Web InterfaceIntro   
    Our new faster and more powerful access to HEASARC data
    Xamin Batch InterfaceDownload   
    Use Xamin from the command line on your machine
  • Traditional Browse Interfaces   Tips Archive
  • Browse Mission Interface  
    Our traditional full-featured interface
    Browse Keyword Search
    Search-Engine-like query using keywords
    Browse Table Index
    List of all tables in the HEASARC database: if we don't have the one you want, ask us to add it
    Browse Correlation
    Cross-correlation of full tables
    Browse Notification Service
    Get notified when new data is available in the archive
    Browse Batch InterfaceDownload  
    Perl scripts (by default these now query Xamin database)

  • CMB Data
  • CMB Missions and Projects
    Data from space-bourne and suborbital CMB experiments in LAMBDA
  • Specialized forms
  • KML Browse Interface
    Map Browse sources in Google Sky and other KML services
    Chandra FOV Search
    Search for targets within the active fields of view
    Argus Observation Monitor
    Search Browse proposal information for observation details and status
    Swift Data Query
    Search bursts and observations of the Swift mission

  • Direct Access to HEASARC archive directories
  • HTTP or FTP

    Browse Quick form divider

    Other Resources

    • SkyView - An easy-to-use tool that returns digital images of the sky in any waveband from radio through to gamma rays
    • VAO DataScope - Query catalogs and services from the HEASARC and from around the world using a single form
    • Literature - Links to literature search engines and online versions of refereed journals and science magazines

    Archive Information

    Latest News

  • Chandra CALDB 4.7.5.1 installed at the HEASARC (21 Jul 2017)
    CalDB 4.7.5.1 is now installed and available at the HEASARC. Chandra 4.7.5.1 was released by the CXC on July 20, 2017...
  • NuSTAR CALDB Update (21 Jul 2017)
    The NuSTAR CALibration DataBase was updated on July 21, 2017 (CALDB version 20170720). This updates the NuSTAR clock correction file to version 73, valid through 2017-07-20.
  • Press Release: Astrosat, Chandra, Hubble Simultaneously Detect a Coronal Explosion on the Nearest Planet-Hosting Star (20 Jul 2017)
    Stars like Proxima Centauri are known to flare on timescales of a few minutes to hours. The ongoing analysis of the data for this flare detected on 31 May 2017 suggests that the flux increases by several orders of magnitude in both X-rays and UV and lasts ~1800 seconds. The energy released during this flare is of the order of ~10 30 erg, 100 times the energy of large solar flares.
  • Sloan Digital Sky Survey Quasar Catalog (12th Data Release: DR12Q) (20 July 2017)
    The SDSS DR12Q Catalog listing the X-ray, UV, optical, IR and radio properties of 297,301 quasars, as well as their redshifts, that were identified in the Baryon Oscillation Spectroscopic Survey (BOSS) of the SDSS-III via visual inspection of their spectra (from Paris et al. 2017, A&A, 597, A79) is now available in Browse and Xamin
  • Gamma-ray Telescopes Reveal a High-energy Trap in Our Galaxy's Center (19 Jul 2017)
    A combined analysis of data from the Fermi Gamma-ray Space Telescope and the High Energy Stereoscopic System (HESS), a ground-based observatory in Namibia, suggests the Galactic Center contains a "trap" that concentrates some of the highest-energy cosmic rays, among the fastest particles in the Galaxy. Gaggero et al. (2017) combined low-energy Fermi LAT data with high-energy HESS data of the Galactic Center to create a continuous gamma-ray spectrum describing this emission across a thousand-fold span of energies.
  • NICER First Light (17 Jul 2017)
    NASA's new Neutron star Interior Composition Explorer (NICER) mission to study the densest observable objects in the universe has begun science operations. To date, NICER has observed over 40 celestial targets to calibrate the X-ray Timing Instrument and supporting star-tracker camera. The observations also validated the payload's performance that will enable its key science measurements.
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    Last modified: Wednesday, 24-May-2017 12:39:54 EDT

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