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
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.
- NICER ATEL: NICER observations of MAXI J1820+070 suggest a rapidly-brightening black hole X-ray binary in the hard state (15 Mar 2018)
NICER observed the new X-ray transient MAXI J1820+070. The light curve shows large amplitude flaring on a time-scale of minutes. The X-ray spectrum shows a hard power-law spectrum and a low temperature disk blackbody component, while timing analysis shows a large amplitude broadband power spectrum. These characteristics strongly suggest that the source is a black hole X-ray binary that is rapidly increasing in flux through the canonical hard state.
- Stephen Hawking Has Died (14 Mar 2018)
Stephen Hawking, one of the leading cosmologists and popularizers
of astronomy in the last century, died earlier today. Hawking's achievements
were made all the more remarkable by the fact that he developed ALS
(amyotrophic lateral sclerosis) in his early twenties. His research on black
holes and on the interaction between quantum mechanics and general relativity
was a seminal contribution to the field.
- NuSTAR CALDB Update (13 Mar 2018)
The NuSTAR CALibration DataBase was updated on March 13, 2018 (CALDB version 20180312). This updates the NuSTAR clock correction file to version 79, valid through 2018-03-12.
- Chandra Cycle 20 Proposal Deadline Has Been Postponed by One Day (13 Mar 2018)
The US National Weather Service has issued a major winter storm
warning for the Northeast of the USA for Tuesday, March 13. This storm will
make commuting hazardous and may cause widespread power outages in the Boston
area. Given the high risk of significant power outages which could affect
proposal submission, Helpdesk responses, and the ability of CXC staff to
support proposers, as well as the ability of Chandra proposers in the
Northeast to prepare and submit their proposals, the deadline has been
postponed by 24 hours. Helpdesk response may be delayed if CXC staff experience
power outages. The new deadline is FRIDAY MARCH 16, 2018 at 6pm EDT (note that
daylight savings time has started in the United States).
- 2018 Laboratory Astrophysics Workshop: Registration & Abstract Deadlines are Near (12 Mar 2018)
The purpose of the NASA Laboratory Astrophysics Workshop
to be held in Athens, GA on April 11-15 2018 is focused on identifying and
prioritizing critical laboratory
astrophysics data needs, defined broadly, to meet the demands of NASA's current
and near-term astrophysics missions. The meeting will also provide a forum
within which the community can present and review the current state of
knowledge in laboratory astrophysics and identify challenges and opportunities
for the field in the near future. The registration deadline is
March 16, and the abstract deadline is March
- Swift CALDB Data updated (08 Mar 2018)
The Swift SC clock correction has been updated (CALDB update version 20180305).
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Upcoming Dates & Deadlines
Upcoming Astronomy Meetings