Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.3508c&link_type=abstract
American Astronomical Society, HEAD meeting #11, #35.08; Bulletin of the American Astronomical Society, Vol. 41, p.715
Astronomy and Astrophysics
Astronomy
Scientific paper
The Burst Alert Telescope (BAT: 14-150 keV) on board of Swift is mainly devoted to the monitoring of a large fraction of the sky (50%-80% per day) for the occurrence of Gamma Ray Bursts. This provides the opportunity for a substantial gain of our knowledge of the Galactic and extragalactic sky in the hard X-ray domain.
Here we present the Second Palermo Swift-BAT hard X-ray catalogue (http://bat.ifc.inaf.it), obtained from the analysis of the data relative to the first 54 months of the Swift mission and including about 1300 BAT sources, 1100 of them associated to a softer counterpart using a large follow-up campain with Swift/XRT. The BAT catalogue includes 62.5% of extragalactic objects, 22.5% of Galactic objects and 15% of known Xray emitters whose nature has not been determined yet. We cross-correlated this sample with Rosat all-sky survey and the Fermi catalogue. Broad band spectral analysis is presented for the different classes of extragalactic sources.
Campana Sergio
Chincarini Guido
Cusumano Giancarlo
Ferrigno Carlo
Giommi Paolo
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