| Type |
Journal Article |
| Names |
S. M. Crawford, M. A. Bershady, J. G. Hoessel |
| Publication |
The Astrophysical Journal |
| Volume |
690 |
| Issue |
2 |
| Pages |
1158-1180 |
| Date |
January 1, 2009 |
| URL |
http://adsabs.harvard.edu/abs/2009ApJ...690.1158C |
| Library Catalog |
NASA ADS |
| Abstract |
We measure the rest-frame B-band luminosity function of red-sequence
galaxies of five intermediate-redshift (0.5 < z < 0.9), high-mass
(σ>950 km s-1) clusters. Cluster galaxies are
identified through photometric redshifts based on imaging in seven bands
(five broad and two narrow) using the WIYN 3.5 m telescope. The
luminosity functions (LFs) are well-fit down to M* B + 3 for
all of the clusters out to a radius of R 200. For comparison,
the LFs for a sample of 59 low-redshift clusters selected from the Sloan
Digital Sky Survey are measured as well. There is a brightening trend
(M* B increases by 0.7 mag at z = 0.75) with redshift
comparable to what is seen in the field for similarly defined galaxies,
although there is a hint that the cluster red-sequence brightening is
more rapid in the past (z > 0.5), and relatively shallow at more
recent times. Contrary to other claims, we find little evidence for
evolution of the faint-end slope. Previous indications of evolution may
be due to limitations in measurement technique, bias in the sample
selection, and cluster-to-cluster variation. As seen in both the low-
and high-redshift samples, a significant amount of variation in LF
parameters α and M* exists between individual clusters. |
| Tags |
GALAXIES: CLUSTERS: GENERAL, GALAXIES: EVOLUTION, Galaxies: Luminosity Function, Mass Function |