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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.
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Latest News
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- NASA Space Telescopes Pinpoint Elusive Brown Dwarf (16 Nov 2016)
In a first-of-its-kind collaboration, NASA's Spitzer and Swift
space telescopes joined forces to observe a microlensing event, when a distant
star brightens due to the gravitational field of at least one foreground cosmic
object. This technique is useful for finding low-mass bodies orbiting stars,
such as planets. In this case, the observations revealed a brown dwarf.
This study by Shvartzvald et al. has just appeared in ApJ
(2016, 831, 183).
- Starvation Diet for Black Hole Dims Brilliant Galaxy (10 Nov 2016)
Astronomers may have solved the mystery of the peculiarly volatile
behavior of a supermassive black hole (SMBH) at the center of the active galaxy
Mkn 1018. Combined data from Chandra and other observatories
suggest that this SMBH is no longer being fed enough fuel to make its
surroundings shine brightly. After discovering the AGN's fickle nature during
a survey project using ESO's Very Large Telescope (VLT), astronomers observed
it with both Chandra and Hubble. Other observatories used in this study include
NuSTAR and Swift. Two papers on these results have just appeared in A&A;:
Husemann
et al. and McElroy
et al. .
- Sgr A* Region Compact Radio Source Catalog (03 Nov 2016)
A catalog of 318 34.5-GHz
sources found in a Jansky Very Large Array A configuration observation of the
Galactic Center region and their near-IR counterparts (from Yusef-Zadeh
et al. 2015, ApJ, 809, 10) is now available
in Browse and
Xamin.
- NASA Missions Harvest a 'Passel of Pumpkin' Stars (28 Oct 2016)
Steven Howell and colleagues (2016,
ApJ, 831, 27) using observations from NASA's Kepler
and Swift missions have discovered a batch of rapidly spinning stars that
produce X-rays at more than 100 times the peak levels ever seen from the sun.
The stars, which spin so fast they've been squashed into pumpkin-like shapes,
are thought to be the result of close binary systems where two sun-like stars
merge.
- IC 1805 Young Massive Cluster XMM-Newton Source Catalog (28 Oct 2016)
A catalog of 191 X-ray
sources found in a 49-ks XMM-Newton EPIC observation of the IC 1805 open
cluster (from Rauw
& Nazé 2016, A&A;, 594, A82) is now available
in Browse and
Xamin.
- NuSTAR CALDB Update (25 Oct 2016)
The NuSTAR CALibration DataBase was updated on October 25, 2016 (CALDB version 20161021). This updates the NuSTAR clock correction file to version 63, valid through 2016-10-21.
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