Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apru11003g&link_type=abstract
American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As
Astronomy and Astrophysics
Astrophysics
Scientific paper
The Energetic X-ray Imaging Survey Telescope (EXIST) is a proposed very large area coded aperture telescope array, incorporating ~8m^2 of pixellated Cd-Zn-Te detectors, to conduct a full-sky imaging survey each 90min orbit. With a sensitivity (5σ, 1yr) of ~0.05mCrab (5-100 keV), it would extend the ROSAT soft/medium x-ray surveys into the HX band and enable identification and study of sources ~10-20× fainter than with Swift. At ~100 - 600 keV, the ~1mCrab sensitivity is ga300× that achieved in the only previous (HEAO-A3; non-imaging) all-sky survey. EXIST would address a broad range of key science objectives: from obscured AGN and surveys for black holes on all scales, which constrain the accretion history of the universe, to the Next Generation Gamma-Ray Burst mission. EXIST is recommended by the NAS/NRC Decadal Survey for implementation this decade. The science and mission drivers as well as possible implementation will be discussed in this presentation.
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