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
  • X-ray flaring of the nuclear transient AT2019avd (23 Sep 2020)
    Swift and NICER observations of the galactic nuclear transient discovered by the Zwicky Transient Facility shows that the source X-ray brightness increased 1000-fold over the last 5 years and show unusual X-ray properties.
  • SkyView hardware upgrade (22 Sep 2020)
    The SkyView website will be unavailable Monday, September 28, 2020 from approximately 12:15pm to 1:30pm as we upgrade our hardware to include newer and faster disks.
  • FermiTools Updated (22 Sep 2020)
    The FermiTools (formerly the SAE) were updated to version 2.0.0 on September 21, 2020. This release includes support for python 3 (python 2 is deprecated an no longer actively supported), and includes new instrument response functions along with an update to ROOT6.
  • Swift CALDB Data updated (17 Sep 2020)
    The Swift SC clock correction file has been updated (CALDB update version 20200908).
  • Globular Cluster 47 Tuc Chandra Catalog (version 2017) Released (16 Sep 2020)
    The GC47TUCCX2 catalog presents the Chandra properties of 370 (81 new, compared to previous GC47TUCCXO, v. 2005, table from Heinke et al, 2005) sources detected in combined Chandra observations from 2000, 2002 and 2014-2015 (total exposure time of 540ks) of globular cluster 47 Tucanae (from Bhattacharya, et al., 2017, MNRAS, 472, 3706B). This is now available in Browse and Xamin.
  • NASA Hubble Fellowship Program (NHFP) Now Accepting Applications (14 Sep 2020)
    The NHFP supports promising postdoctoral scientists performing independent research that contributes to NASA Astrophysics. The research may be theoretical, observational, and/or instrumental. The Announcement of Opportunity, which includes detailed program policies and application instructions, is available at the website. The application submission page will be open from September 8 until November 5, 2020.

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