Quenching star formation: Can AGN do the trick?

Jared M. Gabor, Romeel Dave

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

We post-process galaxy star formation histories in cosmological hydrodynamics simulations to test quenching mechanisms associated with AGN. By comparing simulation results to color-magnitude diagrams and luminosity functions of SDSS galaxies, we examine whether "quasar mode" or "radio mode" AGN feedback can yield a realistic red sequence. Both cases yield red sequences distinct from the blue cloud, decent matches to the luminosity function, and galaxies that are too blue by about 0.1 magnitudes in g-r. Our merger-based prescription for quasar mode feedback, however, yields a red sequence build-up inconsistent with observations: the luminosity function lacks a characteristic knee, and the brightest galaxies include a small number of young stars.

Original languageEnglish
Title of host publicationMonster's Fiery Breath
Subtitle of host publicationFeedback in Galaxies, Groups, and Clusters - Proceedings of the International Conference
Number of pages4
Publication statusPublished - 1 Dec 2009
EventInternational Conference on Monster's Fiery Breath: Feedback in Galaxies, Groups, and Clusters - Madison, WI, United States
Duration: 1 Jun 20095 Jun 2009

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


ConferenceInternational Conference on Monster's Fiery Breath: Feedback in Galaxies, Groups, and Clusters
Country/TerritoryUnited States
CityMadison, WI

Keywords / Materials (for Non-textual outputs)

  • Active galactic nuclei feedback
  • Galaxy evolution


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