Lifting the Veil on Supermassive Black Holes: AGN Science With The EXIST Hard X-ray Satellite

Details Lifting the Veil on Supermassive Black Holes: AGN Science With The EXIST Hard X-ray Satellite Lifting the Veil on Supermassive Black Holes: AGN Science With The EXIST Hard X-ray Satellite

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21540202c&link_type=abstract

American Astronomical Society, AAS Meeting #215, #402.02; Bulletin of the American Astronomical Society, Vol. 42, p.222

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Once considered exotic objects, accreting supermassive blackholes (AGN) and their "feedback" may in fact play a key role in the formation of the structure we see around us today. With its large collection area, simultaneous broad-band energy coverage from 0.5 to 600 keV, and all-sky monitoring capability, the proposed EXIST hard X-ray satellite mission provides an unrivaled census of transient AGN activity in the nearby( z<0.5) universe that is finally unbiased by obscuration and poor time and spectral sampling -- and with enough statistics ( 30,000 objects total) for population studies. EXIST will also find the most powerful and rare accretors out to high redshifts, z 8 in the case of blazar AGN, stressing structure formation theories and finding useful lines of sight to probe the intervening universe. We review how an EXIST hard X-ray survey, coupled with a follow-up survey using its on-board soft X-ray (SXT) and optical/near-infrared (IRT) telescopes, significantly advances our understanding of AGN physics and its role in the overall process of galaxy formation.

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