The High Energy Astrophysics Science Archive Research Center (HEASARC) is the primary archive for NASA's (and other space agencies') missions studying electromagnetic radiation from extremely energetic cosmic phenomena ranging from black holes to the Big Bang. Since its merger with the Legacy Archive for Microwave Background Data Analysis (LAMBDA) in 2008, the HEASARC archive contains data obtained by high-energy astronomy missions observing in the extreme-ultraviolet (EUV), X-ray, and gamma-ray bands, as well as data from space missions, balloons, and ground-based facilities that have studied the relic cosmic microwave background (CMB) radiation in the sub-mm, mm and cm bands.

The HEASARC is a member of the NASA Astronomical Virtual Observatories (NAVO) where we work with other NASA archives to ensure comprehensive and consistent VO access to NASA mission datasets. Users may now query the HEASARC's catalogs using VO-enabled services and specialized tools. This page describes how to get to the HEASARC VO-enabled services and provides information on other HEASARC VO activities.

Latest News
  • XSPEC 12.10.1cde Patches Released (11 Apr 2019)
    Update (c) adds an optional argument to the PyXspec Fit.error() function to allow for error estimates on response parameters; (d) fixes a bug the rdblur, kdblur, kdblur2, and kerrconv convolution models; and (e) fixes a bug in the mdefine command.
  • XAMIN updated (11 Apr 2019)
    The HEASARC XAMIN archive interface has been updated to version 6.0a. This release has many changes associated with use of DataLink to extract data products. It has also been updated to minimize the chance of OutOfMemory errors.
  • NuSTAR CALDB Update (11 Apr 2019)
    The NuSTAR CALibration DataBase was updated on April 11, 2019 (CALDB version 20190410). This updates the NuSTAR clock correction file to version 92, valid through 2019-04-10.
  • Swift CALDB Data updated (08 Apr 2019)
    The Swift SC clock correction has been updated (CALDB update version 20190405).
  • 2019 NHFP/Einstein Postdoctoral Fellows Selected (5 Apr 2019)
    NASA has announced the selection of the 2019 NASA Hubble Fellowship Program (NHFP), which supports postdoctoral fellows performing research across all of NASA astrophysics. NHFP postdocs are named as Hubble, Einstein, and Sagan fellows, depending on their research topics. Awards support each Fellow through a U.S. Host Institution for up to three years. Full biographies and other information about this year's Fellows, including each Fellow's research plans, are available at this link.:
  • Planck Catalog of Galactic Cold Clumps (PlanckGCC) Released (5 Apr 2019)
    The Planck Catalog of Galactic Cold Clumps (PGCC) is an all-sky catalog of 13188 Galactic cold clump candidates detected by Planck. This table is now available in Browse and Xamin.

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Last modified: Friday, 10-Aug-2018 08:29:24 EDT

HEASARC support for unencypted FTP access will be ending possibly as early as July 31, 2019. Please see this notice for details.