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HEASARC in the VO IVOA
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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
  • XMM-Newton AO-19 Results Released (3 Dec 2019)
    The list of XMM-Newton observing proposals accepted by the AO-19 Observing Time Allocation Committee is now available.
  • An X-ray Flare from eta Carinae as seen by NICER (03 Dec 2019)
    NICER monitoring of the massive colliding wind binary eta Carinae as the stars approach periastron passage has detected a sudden X-ray brightening. This X-ray flare is similar to the X-ray flaring seen at a similar orbital phase in previous binary orbital cycles. X-ray flaring should continue until the star reaches it X-ray maximum before the decline to the X-ray minimum on 2020 February 13.
  • Viewing tool updated (02 Dec 2019)
    Support for the upcoming IXPE mission has been added to Viewing.
  • IRAM NOrthern Extended Millimeter Array (NOEMA) Observation Log Updated (25 Nov 2019)
    The third version of the IRAM NOEMA - the successor to the Plateau de Bure Interferometer (PdBI) - observing log (Dan et al. 1991-2017, IRAM Newsletters) containing 2,180 observations from May 31, 2015 through November 12, 2019 is now available in Browse and Xamin.
  • NICER detection of 9.29 s pulsations from RX J0209.6-7427 (25 Nov 2019)
    NICER observations of the hard X-ray transient MAXI J0206-749 = HMXB RX J0209.6-7427 revealed a strong 9.29 s X-ray periodicity, making this system only the second confirmed pulsar in the Magellanic Cloud bridge.
  • NICER detection of a strong X-ray flare from GRS 1915+105 (25 Nov 2019)
    NICER detected a strong flare from the black hole binary system GRS 1915+105 during the source's current low flux state. The NICER flare was the largest yet seen from this system. This X-ray flare may have been the precursor to a strong radio flare seen from the source a short time after the NICER observation.

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Last modified: Friday, 21-Jun-2019 15:13:08 EDT

HEASARC support for unencrypted FTP access ended on September 20, 2019. Please see this notice for details.