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OATS-UNI/TS SEMINAR
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Speaker: Viola Allevato (Dept. of Physics, Univ. of Helsinki)

Title: Clustering properties and halo occupation of X-ray selected AGN in COSMOS
Date: Wednesday, June 12th, 2013
Time: 11:30
Venue: Villa Bazzoni
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Abstract In the past decade it has become clear that every galaxy with a bulge-like component hosts a super massive black hole at its centre that reaches high masses via one or more phases of intense accretion activity shining as Active Galactic Nuclei. Measurement of the spatial distribution of AGN in the Universe, provides a unique way to study the typical environment in which AGN preferentially reside, through the connection with their host dark matter halos (DMHs) and to address which physical processes are triggering AGN activity. In particular, the halo model approach reduces the problem of discussing the distribution of AGN to studying how they populate their host halos, at the level of individual halos. In this seminar I will talk about the clustering properties and the halo occupation distribution of X-ray AGN, using a large sample of X-ray selected AGN and galaxy groups constructed using XMM and Chandra data in the COSMOS survey.
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Contact: B. Sartoris (DAUT)