Quasars, Mergers, and the Formation of Red Galaxies

Details Quasars, Mergers, and the Formation of Red Galaxies Quasars, Mergers, and the Formation of Red Galaxies

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...20925103h&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #251.03; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

Observations increasingly demonstrate a link between quasar activity and spheroid formation, and at the same time, theoretical models increasingly invoke feedback from AGN or quasars to suppress galaxy growth in the most massive systems. In this capacity, observations of quasars and AGN represent a critical constraint in understanding the evolution of galaxy populations and nature of ``cosmic downsizing.'' Although the mechanisms which drive black hole growth and the nature of feedback remain uncertain, many empirical links can already be drawn, and rapid improvements in observations and models hold the potential to dramatically improve constraints on these processes in the near future.

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