Development of the Red Sequence in Galaxy Clusters
  We investigate the origin of the color-magnitude relation (CMR) observed in
cluster galaxies by using a combination of a cosmological N-body simulation of
a cluster of galaxies and a semi-analytic model of galaxy formation. The
departure of galaxies in the bright end of the CMR with respect to the trend
defined by less luminous galaxies could be explained by the influence of minor
mergers.
