The cluster galaxy luminosity function at $z=0.3$: a recent origin for the faint-end upturn ?

Abstract

We derive deep luminosity functions (to $M_z=-15$) for galaxies in Abell 1835 ($z=0.25$) and AC 114 ($z=0.31$) and compare these with the local $z^{\prime }$ luminosity function for 69 clusters. The data show that the faint-end upturn, the excess of galaxies above a single Schechter function at $M_z<-17$, 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.^M

6 pages, MNRAS main journal, accepted for publication

References in corpus (3)

• The build-up of the colour-magnitude relation in galaxy clusters since z~0.8
• The Faint End of the Luminosity Function in the Core of the Coma Cluster
• The Galaxy Luminosity Functions down to M~-10 in the Hydra I Cluster

Cited by in corpus (5)

• On the galaxy stellar mass function, the mass-metallicity relation, and the implied baryonic mass function
• Strange filamentary structures ("fireballs") around a merger galaxy in the Coma cluster of galaxies
• Keck spectroscopy of the faint dwarf elliptical galaxy population in the Perseus Cluster core: mixed stellar populations and a flat luminosity function
• A Flexible Method of Estimating Luminosity Functions
• The luminosity function of galaxies to $M_{BgVriz}\sim -14$ in $z\sim 0.3$ clusters