The Formation of Massive Cluster Galaxies

Details The Formation of Massive Cluster Galaxies The Formation of Massive Cluster Galaxies

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21641705m&link_type=abstract

American Astronomical Society, AAS Meeting #216, #417.05; Bulletin of the American Astronomical Society, Vol. 41, p.828

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the 3.6 and 4.5 micron cluster luminosity functions measured from the Spitzer Deep Wide Field Survey (SDWFS) for 0.21.3) deviate from the best fitting passive evolution model to the low redshift data at the 5 sigma level, and this discrepancy is consistent with the expected signature from galaxy assembly. We conclude that assembly of massive cluster galaxies is largely complete by z 1.3, and that their stellar populations are consistent with a luminosity weighted mean formation redshift z 2.

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