AGN properties in a cosmological evolution scenario

Details AGN properties in a cosmological evolution scenario AGN properties in a cosmological evolution scenario

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1248..497r&link_type=abstract

X-RAY ASTRONOMY 2009; PRESENT STATUS, MULTI-WAVELENGTH APPROACH AND FUTURE PERSPECTIVES: Proceedings of the International Confer

Astronomy and Astrophysics

Astronomy

Galactic Nuclei, Cosmology, Black Holes, Brightness, Galactic Nuclei, Circumnuclear Matter, And Bulges, Origin And Formation Of The Universe, Black Holes, Magnitudes And Colors, Luminosities

Scientific paper

To understand how AGN accrete, evolve and affect the surrounding galaxy, it is necessary to investigate how their intrinsic properties change with time. We consider different AGN populations, accounting for the physical properties and obscuration, and trace their redshift evolution. In particular, we investigate the role of Eddington ratio and accretion efficiency in the black hole mass function, and build a scenario where objects with a high spread in Eddington ratios, including low values (10-3-10-2) are consistent with the observed local mass function.

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