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 not only data
obtained by high-energy astronomy missions observing in the
extreme-ultraviolet (EUV), X-ray, and gamma-ray bands, but also data from
space missions, balloons, and ground-based facilities that have studied the
relic cosmic microwave background (CMB).
- Suzaku Cycle 10 Target List Available (21 Apr 2015)
The list of accepted Suzaku AO-10 targets is now available.
- Mysterious 'Cold Spot': Fingerprint of Largest Structure in the Universe? (20 Apr 2015)
et al. (2015, MNRAS, 450, 288) have used the WISE-2MASS
IR galaxy catalogue matched with Pan-STARRS1 (PS1) galaxies to search for a
supervoid in the direction of the cosmic microwave background (CMB) cold spot.
Their results are indeed consistent with such a supervoid as a plausible
cause for the WMAP/Planck cold spot
- Fermi LAT High-Energy (1FHL) Source Catalog (17 Apr 2015)
This catalog of 514 gamma-ray sources detected at energies
above 10 GeV by the Fermi
Large Area Telescope in its first 3 years of operations (taken from Ackermann
et al. 2013, ApJS, 209, 34) is now available in Browse
- Swift Data Reprocessing (17 Apr 2015)
The Swift Data Center is now reprocessing the Swift data for the
entire mission in chronological order using the current version of the Swift
Data Center pipeline (v. 3.16.08). All the data for 2005 have been reprocessed
and delivered to the HEASARC. The archives in Italy and UK are currently
populating their archives with the new data. Currently the reprocessing rate
is about 3 months per month.
- Astronomers discover two classes of Type Ia Supernovae (14 Apr 2015)
et al. 2015, ApJ, 803, 20 have found that type Ia
supernovae commonly used to measure distances in the universe fall into
distinct populations not recognized before. The data collected with
Swift were crucial because the
differences between the populations are subtle in visible light, but became
obvious only through Swift's dedicated follow-up observations in the
ultraviolet with UVOT.
- XSPEC 12.8.2n Released (13 Apr 2015)
Updated April 8, 2015. Corrections for the feld abundance table values for the elements Cl, Cr, Mn, and Co.
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