Cosmic Evolution Of Black Holes And Galxies In The Last 6 Billion Years

Details Cosmic Evolution Of Black Holes And Galxies In The Last 6 Billion Years Cosmic Evolution Of Black Holes And Galxies In The Last 6 Billion Years

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21115603w&link_type=abstract

American Astronomical Society, AAS Meeting #211, #156.03; Bulletin of the American Astronomical Society, Vol. 39, p.1008

Astronomy and Astrophysics

Astronomy

Scientific paper

In the present-day universe, the masses of giant black holes are correlated with the luminosities, masses, and velocity dispersions of their host galaxies. This empirical correlation of phenomena on widely different scales suggests that the growth of black holes and the evolution of galaxies are closely linked. With high S/N Keck spectra and HST images, we will present direct measurements of the scaling relations between black hole mass and host galaxy properties at z=0.36 and z=0.57. By comparing these relations with those of local quiescent and Seyfert galaxies, we will show that the relations evolved significantly in the last 6 billion years, indicating that the growth of black hole predates the final bulge assembly, at the mass scales of = 170 km/s. Selection bias and the mass-dependency of the evolution will be discussed.

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