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
  • Swift CALDB Data updated (05 Feb 2019)
    The Swift SC clock correction has been updated (CALDB update version 20190129).
  • Updated ROSES 2018 proposal deadlines (04 Feb 2019)
    Several NASA ROSES deadlines have been updated and the full list can be found in the ROSES 2018 Table 2. HEASARC lists the major upcoming deadlines for the submission of high-energy and general astrophysics and/or other missions which may be of interest to HEASARC users here.
  • INTEGRAL AO-17 Schedule Announced (29 Jan 2019)
    The ISOC is preparing the next call for proposals requesting INTEGRAL observing time. The AO-17 release will be on 25 Feb 2019 with proposals due on 5 April 2019 (14:00 CEST).
  • NuSTAR Guest Observer (GO) Cycle 5 Deadline is now TBD (17 Jan 2019)
    The due date for NuSTAR Cycle 5 proposal submission is now TBD. See the amendment recently posted at NSPIRES. A new date will be set when the government reopens, with some additional time provided since some proposers have been unable to work. Please note that the proposal submission website (ARK/RPS) will remain open as long as possible to accept proposals.
  • NICER sees the contraction of the corona in a black hole X-ray transient (14 Jan 2019)
    NICER made the cover of Nature with an analysis by Kara et al. of the temporal behavior of the X-ray spectrum of the black hole transient system MAXI J1820+070. Their analysis of the time-resolved NICER spectra of this system showed that the inner edge of the accretion disk is near the accreting black hole and that variations in the X-ray spectral lags indicated that the corona shrank over a time interval of a few weeks.
  • Updated Million Quasars Catalog (v5.7) (07 Jan 2019)
    The latest version (v5.7, 7 January 2019) of the Million Quasars (MILLIQUAS) Catalog (Eric Flesch 2009 - 2018) containing a lot more than one million (1,983,749 to be exact) likely quasars is now available in both Browse and Xamin.

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