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OATS-DAUT SEMINAR
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Speaker:
Marcella Brusa (MPE, Munich, D)
Title:
AGN evolution from large and deep X-ray surveys: results and perspectives
Date: Wednesday, May 13th, 2009
Time: 12:00
Venue: Villa Bazzoni
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Abstract:
Over the last few years, the existence of mutual feedback effects
between accreting supermassive black holes powering AGN and star
formation in their host galaxies has become evident. This means that
the formation and the evolution of AGN and galaxies should be
considered as one and the same problem. As a consequence, the search
for, and the characterization of the evolutive and physical properties
of AGN over a large redshift interval is a key topic of present
research in the field of observational cosmology. Significant
advances have been obtained in the last ten years thanks to the
sizable number of XMM-Newton and Chandra surveys, complemented by
multiwavelength follow-up programs. I will review some of the recent
results and the ongoing efforts aimed at obtaining a complete census
of accreting Black Holes in the Universe, and in particular:
i) The multiwavelength searches for the most heavily obscured, Compton Thick,
AGN;
ii) The star-formation/AGn connection at z>1
iii) The space density of high redshift (z ~ 3-5) X-ray selected AGN.
The perspectives for present on-going surveys (COSMOS. CDFS) and for
future missions (i.e. eROSITA and IXO ) will also be outlined.
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contact: Paolo Tozzi (OATS)