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.

Picture of the Week

This Week's High-Energy Picture
APOD: Astronomy Picture
of the Day

Today's APOD Image

More Images

Xamin Quick Search Xamin     Browse


Enter positions, times, missions, etc to query the HEASARC database.

Try ROSAT 3c273 1d to get ROSAT data within one degree of 3C273 or chanmaster bii>80 status='archived' to get archived Chandra observation data near the north galactic pole.

Note: For more than one target or when using any qualifier other than a mission, use quotes around targets that have embedded white space.(e.g., 'ar lac').

More information and examples


View all tips

Latest News
  • Fermi Finds Record-breaking Binary in Galaxy Next Door (13 Oct 2016)
    Using data from NASA's Fermi Gamma-ray Space Telescope and other facilities, an international team of scientists has found the first gamma-ray binary in another galaxy and the most luminous one ever seen. The dual-star system, dubbed LMC P3, contains a massive star and a crushed stellar core that interact to produce a cyclic flood of gamma rays, the highest-energy form of light. A paper on these results has just appeared in ApJ and is available online here.
  • XSPEC 12.9.0q,r,s Released (4 Oct 2016)
    XSPEC patches 12.9.0q,r,s, released August 19. Fixes issues with simftest, the GW method for MCMC, and 2-D contour plotting.
  • Viewing tool updated (28 Sep 2016)
    Support for NICER has been added, and support for Hitomi has been removed.
  • NuSTAR CALDB Update (23 Sep 2016)
    The NuSTAR CALibration DataBase was updated on August 30, 2016 (CALDB version 20160922). This updates the NuSTAR clock correction file to version 61, valid through 2016-09-22.
  • VLA Orion Nebula Cluster Compact Source Catalog (21 Sep 2016)
    A deep cm-wavelength catalog of 556 compact sources found in a 30-hr Jansky Very Large Array observation of the Orion Nebula Cluster (from Forbrich et al. 2016, ApJ, 822, 93) is now available in Browse and Xamin.
  • Fermi Science Analysis Environment Source package Updated Mac OS X El Capitan (20 Sep 2016)
    The FSSC is pleased to announce the availability of a version of the Fermi Science Tools that can be built from source on Darwin 15.6 (el Capitan). This release is only for users with problems using the binary version of the tools on el Capitan. Note that this version of the tools does not support the ROOT or gtburst software. The source code package can be found here.

RSS [What is this?]

Upcoming Dates & Deadlines
Upcoming Astronomy Meetings

HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public

Last modified: Tuesday, 25-Oct-2016 00:30:05 EDT