Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-12-18
AIP Conf.Proc.510:784-788,2004
Astronomy and Astrophysics
Astrophysics
5 pages LaTeX. To appear in Proc. 5th Compton Symp. (M. McConnell, ed.; AIP Conf. Proc.)
Scientific paper
10.1063/1.1303305
A deep all-sky imaging hard x-ray survey and wide-field monitor is needed to extend soft (ROSAT) and medium (ABRIXAS2) x-ray surveys into the 10-100 keV band (and beyond) at comparable sensitivity (~0.05 mCrab). This would enable discovery and study of >3000 obscured AGN, which probably dominate the hard x-ray background; detailed study of spectra and variability of accreting black holes and a census of BHs in the Galaxy; Gamma-ray bursts and associated massive star formation (PopIII) at very high redshift and Soft Gamma-ray Repeaters throughout the Local Group; and a full galactic survey for obscured supernova remnants. The Energetic X-ray Imaging Survey Telescope (EXIST) is a proposed array of 8 x 1m^2 coded aperture telescopes fixed on the International Space Station (ISS) with 160deg x 40deg field of view which images the full sky each 90 min orbit. EXIST has been included in the most recent NASA Strategic Plan as a candidate mission for the next decade. An overview of the science goals and mission concept is presented.
Bildsten Lars
Chakrabarty Deepto
Elvis Martin
Fabian Andrew
Fiore Fabrizio
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