Poster Title: Growing black holes in computer simulations of galaxy formation
Abstract: GalICS (Galaxies In Cosmological Simulations) is a semi-analytic model of galaxy formation that uses merger trees constructed from N-body simulations. AGNICS (Active Galactic Nuclei In Cosmological Simulations) is a new version of GalICS including the growth of supermassive black holes in galaxy nuclei. AGNICS starts from assuming that AGN are triggered by galaxy interaction/bars and models the contribution of AGN to the optical, sub-mm, radio and X-ray spectra of galaxies. It was developed to study the cosmic evolution of the quasar population and multiwavelength properties quasar hosts. However, it has also been used to investigate the role of black hole growth in relation to the overcooling problem affecting semi-analytic models of galaxy formation. In this talk I shall present the main results of the AGNICS model and their implications in relation to different scenarios for the growth of supermassive black holes. I shall place a special emphasis on the topics of optically unseen accretion, cold/hot gas accretion and AGN feedback.
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