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
  • NGC6231 Chandra Catalog (version 2) Released (27 Oct 2020)
    NGC6231 is a young cluster with ~100 O and B stars. NGC6231CX2, based on Kuhn et al, 2017, AJ, 154, 87K, presents the X-ray properties for 2411 X-ray sources, of which 2148 are probable cluster members. This is now available in Browse and Xamin.
  • NICER Detects X-ray pulsations from IGR J17494-3030 (28 Oct 2020)
    NICER observations of the newly-active source IGR J17494-3030 have detected a 376-Hz X-ray pulsation modulated but a 4509s period, showing that this source is an ultracompact binary with an accreting neutron star and a companion with a minimum mass of 0.015 solar masses.
  • Update: SkyView hardware upgrade completed (26 Oct 2020)
    Update: The SkyView hardware upgrade has been successfully completed. Thank you for your patience, and please let us know if you encounter any issues or lags with the service through our feedback form.
  • NICER identifies SGR 1830-0645 as a Magnetar (22 Oct 2020)
    NICER observations clearly show that the recently discovered source SGR 1830-0645 is a magnetar with a magnetic field strength of about 3x10 gauss.
  • Chandra CALDB 4.9.3 installed at the HEASARC (16 Oct 2020)
    The Chandra CalDB 4.9.3 is now installed and available at the HEASARC. Chandra 4.9.3 was released by the CXC on October 16, 2020. Note that CALDB 4.9.3 is compatible with CIAO 4.12 and later versions only.
  • INTEGRAL Operations Approved Through 2022 (15 Oct 2020)
    ESA's Science Programme Committee (SPC) has confirmed the continued operation of INTEGRAL from January 1, 2021 through December 31, 2022. The decision was taken during the SPC meeting held October 1, 2020 following a comprehensive review.

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Last modified: Tuesday, 26-May-2020 14:54:42 EDT