The Star Formation Histories of Red-Sequence Galaxies

Details The Star Formation Histories of Red-Sequence Galaxies The Star Formation Histories of Red-Sequence Galaxies

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1240..347h&link_type=abstract

HUNTING FOR THE DARK: THE HIDDEN SIDE OF GALAXY FORMATION. Edited by Victor P. Debattista and Cristina C. Popescu AIP Conferen

Physics

Star Formation, Stellar Mass, Clusters Of Galaxies, Dark Matter, Galactic Centre, Star Formation, Masses, Galaxy Clusters, Dark Matter, Galactic Center, Bar, Circumnuclear Matter, And Bulge

Scientific paper

Red galaxies contain most of the stellar mass in the nearby Universe, but their star formation histories remain poorly understood. Here we summarize recent work by our group: (1) velocity dispersion is the driver of stellar populations, suggesting an internal process; (2) low-mass galaxies are ``young'' and that (3) they are best fit by a star formation history that is either a single burst, or quenched at intermediate times. We also show that the cluster environment does play a weak role for giant L* galaxies, apparently by quenching the disks in S0s and early-type spirals. For red-sequence dwarfs, however, the effect of the cluster environment is very strong.

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