Abstract
We derive I-band luminosity functions for galaxies in Abell 426 (Perseus and Abell 539, two rich, low Galactic latitude clusters at moderate redshift. Cluster members are selected via the color-magnitude relation for bright galaxies. We find α = -1.56 ± 0.07 for Perseus over the range -19.4 < MI < -13.4 (15 < I < 21) and α = -1.42 ± 0.14 for -18.5 < MI < -14 (17 < I < 21.5) for A539. These luminosity functions are similar to those derived in Virgo and Fornax, weakly supporting claims for the existence of a universal luminosity function for galaxies in clusters.
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