Observational evidence for AGN feedback in early-type galaxies

Details Observational evidence for AGN feedback in early-type galaxies Observational evidence for AGN feedback in early-type galaxies

2007-09-19

arxiv.org/abs/0709.3015v1

Mon.Not.Roy.Astron.Soc.382:1415-1431,2007

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS. 18 pages, 12 figures. A version with full-resolution figures is available http://www-astr

Scientific paper

10.1111/j.1365-2966.2007.12487.x

A major amendment in recent models of hierarchical galaxy formation is the inclusion of so-called AGN feedback. The energy input from an active central massive black hole is invoked to suppress star formation in early-type galaxies at later epochs. A major problem is that this process is poorly understood, and compelling observational evidence for its mere existence is still missing. In search for signatures of AGN feedback, we have compiled a sample of 16,000 early-type galaxies in the redshift range 0.05

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