A composite K-band luminosity function for cluster galaxies

We present a composite K-band luminosity function for 10 clusters at low redshift, where member galaxies are identified from an existing spectroscopic survey (the 2dF galaxy redshift survey). Our kinematically selected K-band luminosity function is well fitted by a Schechter function with M-K* = -24.50+5 log h and alpha = -0.98 over -27 << M-K - 5 log h < -22. This is very similar to the 2dF field value and suggests that the integrated mass accretion history of galaxies does not vary strongly with environment. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim