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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.
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Latest News
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- Viewing tool updated (22 Sep 2017)
Swift's orbital pole constraints have been updated in the
Viewing tool. The revised coefficients extrapolate the trend for the
next year.
- NICER First ATEL: The Hard X-ray transient MAXI J1535-571 (22 Sep 2017)
NICER has observed the hard X-ray transient MAXI J1535-571 several times from 2017 September 9 through September 20. The source had a NICER count rate ranging from 3,200 to 17,000 counts per second over this interval. NICER detects a set of low-frequency QPOs in a 1:2 frequency ratio, while the time-averaged spectrum shows broadened iron emission and puts constraints on the black hole spin parameter and the inclination of the accretion disk.
- The Accretion-Powered Pulsar SXP 1062 Reveals Unique Timing Glitch (21 Sep 2017)
The discovery of the largest timing irregularity yet observed in
a pulsar is the first confirmation that pulsars in binary systems can exhibit
the strange phenomenon known as a 'glitch'. A group of scientists from the
Middle East Technical University and Baskent University in Turkey (Serim et al. 2017,
MNRAS, 471, 4982) has discovered a sudden change in the
rotation speed of the peculiar binary pulsar SXP 1062.
- TESS Cycle 1 Phase 1 Proposal Deadline Has Been Extended to October 6, 2017, 4:30 PM EDT (19 Sep 2017)
To give more time to proposers who are without power because of
Hurricane Irma, ROSES-17 Amendment 31 delays the Phase-1 proposal due date for
this program element to October 6, 2017. Phase-1 proposals are due by 4:30
PM EDT on that day via the ARK/RPS web
page. For full details on the TESS Cycle 1 program
elements and how to submit proposals, please see the TESS
proposers' information page.
- Swift Cycle 14 Deadline Has Been Extended to September 28, 2017, 4:30 PM EDT (18 Sep 2017)
To give more time to proposers who are without power because of
Hurricane Irma, ROSES-17 Amendment 30 delays the Phase-1 proposal due date for
this program element to September 28, 2017. Phase-1 proposals are due by 4:30
PM EDT on that day via the ARK/RPS web
page. For full details on the Swift Cycle 14 program
elements and how to submit proposals, please see the Swift Cycle 14 information
page at the top link and the Cycle
14 Frequently Asked Questions (FAQ).
- Star Formation in Nearby Clouds (SFiNCs) X-Ray Source Catalog (15 Sep 2017)
This catalog of 15,364 X-ray sources detected in Chandra ACIS
obsrervations of 22 nearby star-forming regions (SFRs), from Getman
et al. 2017, ApJS, 229, 28, is now available in Browse and
Xamin,
as is the catalog
of nearly 8500 probable cluster members of these SFRs
(a 40% increase over the previous census) that was presented in the same
paper.
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HEASARC News
Upcoming Dates & Deadlines
Upcoming Astronomy Meetings
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