The role of active galactic nuclei in galaxy formation

Thomas, P A and Henriques, B M (2009) The role of active galactic nuclei in galaxy formation. In: International Conference on Monster's Fiery Breath: Feedback in Galaxies, Groups, and Clusters, Madison, WI; 1 June 2009 through 5 June 2009.

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We use Monte-Carlo Markov chain techniques to constrain acceptable parameter regions for the Munich L-Galaxies semi-analytic galaxy formation model. Feedback from active galactic nuclei (AGN) is required to limit star-formation in the most massive galaxies. However, we show that the introduction of tidal stripping of dwarf galaxies as they fall into and merge with their host systems can lead to a reduction in the required degree of AGN feedback. In addition, the new model correctly reproduces both the metallicity of large galaxies and the fraction of intracluster light.

Item Type: Conference or Workshop Item (Paper)
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Peter Thomas
Date Deposited: 06 Feb 2012 20:53
Last Modified: 03 Apr 2012 09:11
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