Coevolution of Supermassive Black Holes and Their Host Galaxies

Details Coevolution of Supermassive Black Holes and Their Host Galaxies Coevolution of Supermassive Black Holes and Their Host Galaxies

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..373..682k&link_type=abstract

The Central Engine of Active Galactic Nuclei, ASP Conference Series, Vol. 373, proceedings of the conference held 16-21 October,

Physics

Scientific paper

Accretion onto a black hole (BH) is the most viable explanation for the huge emitted power in active galaxies. A wealth of observations have shown the presence of a BH in many nearby inactive bulges, suggesting that all massive spheroids harbor a BH. At low redshift, fundamental correlations have been found between the BH mass and the luminosity (mass) and the central velocity dispersion of the host galaxy bulge, indicating a strong relationship between the formation and evolution of massive bulges and their central BH. We discuss our ongoing program to investigate the cosmic evolution of this relationship. Rest-UV spectroscopy is used to determine the virial BH masses of a large sample of high-redshift quasars for which the host galaxy luminosity is reliably determined from our previous VLT imaging.

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