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
  • IGR J17591-2342 second re-brightening observed with NICER (21 Sep 2018)
    NICER observations of the second re-brightening of the accreting millisecond pulsar IGR J17591-2342 show it reaching its highest flux yet seen, with strong pulsations remaining after almost 60 days post-outburst.
  • 12th INTEGRAL Workshop and 1st AHEAD Gamma-Ray Workshop (19 Sep 2018)
    The 12th INTEGRAL Conference will be organized together with the 1st AHEAD Gamma-Ray Workshop on 11-15 February 2019: "INTEGRAL looks AHEAD to Multi-Messenger Astrophysics". It will be hosted by the Campus Biotech, in Geneva (Switzerland). This conference will discuss recent developments in high-energy astronomy, with particular emphasis on its role in multi-messenger astronomy. Further information including deadlines can be found at the above link.
  • Viewing tool updated (17 Sep 2018)
    The Swift pole constraints have been updated in the Viewing tool. The revised coefficients extrapolate the trend for the next year. The Viewing tool now also can report a "preferred" visibility window for NICER observations, which has a Sun angle constraint of 60-180 degrees. (The nominal visibility window for NICER observations is unchanged.)
  • PIMMS updated to Version 4.9 (17 Sep 2018)
    Version 4.9 contains updates for NICER rate simulations and updated calibrations for XMM....
  • XAMIN updated (17 Sep 2018)
    The HEASARC XAMIN archive interface has been updated to version 5.3.1. This release includes improvements to VOTable output and other performance improvements
  • Chandra CALDB 4.8.0 installed at the HEASARC (14 Sep 2018)
    CalDB 4.8.0 is now installed and available at the HEASARC. Chandra 4.8.0 was released by the CXC on June 28, 2018.

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