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.

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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').

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Latest News
  • XSPEC 12.9.0h Released (24 Nov 2015)
    Patch 12.9.0h, released November 19, restores the ability to read in XFLT keywords whose values are numbers encoded as strings.
  • Swift CALDB Data updated (16 Nov 2015)
    A new Swift clock correction file has been added to the Swift SC Caldb (update version 20151105) ...
  • Fermi Finds Hints of Gamma-ray Cycle in the Active Galaxy PG 1553+113 (15 Nov 2015)
    Astronomers using data from NASA's Fermi Gamma-ray Space Telescope have detected hints of periodic changes in the brightness of a so-called "active" galaxy, whose emissions are powered by a supersized black hole. If the 2.18 year gamma-ray period is confirmed, the discovery would mark the first years-long cyclic gamma-ray emission ever detected from any galaxy, which could provide new insights into physical processes near the black hole (see Ackermann et al. 2015, ApJL, 813, L41 for more details).
  • Fermi Has Detected an extremely bright gamma-ray pulsar in the Large Magellanic Cloud (13 Nov 2015)
    The Fermi Gamma-ray Space Telescope Large Area Telescope (LAT) Collaboration has detected pulsed gamma-ray emission from a previously known X-ray pulsar in the LMC, PSR J0540-6919 (2015, Science, 350, 801). This object is the first gamma-ray pulsar detected in another galaxy and, at 20 times more luminous in gamma-rays than the Crab pulsar, the brightest yet observed in this energy band.
  • NASA's Swift Spots its Thousandth Gamma-ray Burst (12 Nov 2015)
    The Swift spacecraft has detected its 1,000th gamma-ray burst (GRB). GRBs are the most powerful explosions in the universe, typically associated with the collapse of a massive star and the birth of a black hole. "Detecting GRBs is Swift's bread and butter, and we're now at 1,000 and counting," said Neil Gehrels, the Swift principal investigator at NASA's Goddard Space Flight Center. "The spacecraft remains in great shape after nearly 11 years in space, and we expect to see many more GRBs to come."
  • XSPEC 12.9.0f,g Released (10 Nov 2015)
    Patch 12.9.0f fixes a problem with the installation of the NEI v2 files. Patch 12.9.0g fixes a problem with the interpretation of levels in plot contour.

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Last modified: Monday, 30-Nov-2015 00:30:03 EST