Physics
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aps..apr.x4002g&link_type=abstract
American Physical Society, 2009 APS April Meeting, May 2-5, 2009, abstract #X4.002
Physics
Scientific paper
The Energetic X-ray Imaging Survey Telescope (EXIST) is proposed to survey the Universe for black holes on all scales and is a leading candidate to be the Black Hole Finder Probe with three primary science goals: 1. Detect and study cosmic gamma-ray bursts (GRBs) at high redshift to study stellar mass black hole formation and the epoch of re-ionization in the Early Universe. 2. Conduct an unbiased hard X-ray survey for supermassive black holes in galactic nuclei to measure the fraction of those that are obscured and/or dormant to constrain the accretion luminosity of the Universe; and 3. Study high energy transients, from stars to SMBHs, synoptic with ground and space temporal surveys. EXIST would carry 3 instruments: a wide-field (90^ox70^o) high energy (5-600 keV) telescope (HET) to yield <20'' source positions; a 1.1m optical-infrared telescope (IRT) which images a ˜4'x4' field around the HET position simultaneously in 4 bands (0.3-2.1microns) and obtains low-res or high-res spectra and redshifts; and a focusing soft X-ray imager (SXI) for sensitive 0.1 --10 keV images (20' FoV and 15'' resolution) during both the 2y scanning mode and 3y followup pointings for imaging and spectra. EXIST would serve a broad community of guest investigators following a proposed launch in 2017.
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