The Cluster Galaxy Luminosity Function At Z = 0.3: A Recent Origin For The Faint-end Upturn ?

Details The Cluster Galaxy Luminosity Function At Z = 0.3: A Recent Origin For The Faint-end Upturn ? The Cluster Galaxy Luminosity Function At Z = 0.3: A Recent Origin For The Faint-end Upturn ?

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.0906h&link_type=abstract

American Astronomical Society, AAS Meeting #211, #09.06; Bulletin of the American Astronomical Society, Vol. 39, p.742

Astronomy and Astrophysics

Astronomy

Scientific paper

We derive deep luminosity functions (to Mz = -15) for galaxies in Abell 1835 (z = 0.25) and AC 114 (z = 0.31) and compare these with the local z′ luminosity function for 69 clusters. The data show that the faint-end upturn, the excess of galaxies above a single Schechter function at Mz < -17, does not exist in the higher redshift clusters. This suggests that the faint-end upturn galaxies have been created recently, by infall into clusters of star-forming field populations or via tidal disruption of brighter objects.

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