The GALEX ultraviolet luminosity function of the cluster of galaxies A1367

L. Cortese, A. Boselli, G. Gavazzi, J. Iglestas-Paramo, B. F. Madore, T. Barlow, L. Bianchi, Y. I. Byun, J. Donas, K. Forster, P. G. Friedman, T. M. Heckman, P. Jelinsky, Y. W. Lee, R. Malina, D. C. Martin, B. Milliard, P. Morrissey, S. Neff, R. M. RichD. Schiminovich, O. Siegmund, T. Small, A. S. Szalay, M. A. Treyer, B. Welsh, T. K. Wyder

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We present the Galaxy Evolution Exlorer (GALEX) near-ultraviolet (2310 Å) and far-ultraviolet (1530 A) galaxy luminosity functions of the nearby cluster of galaxies A1367 in the magnitude range -20.3 ≤ MAB ≤ -13.3. The luminosity functions are consistent with previous (∼2 mag shallower) estimates based on the FOCA and FAUST experiments, but they display a steeper faint-end slope than the GALEX luminosity function for local field galaxies. Using spectrophotometric optical data, we select star-forming systems from quiescent galaxies and study their separate contributions to the cluster luminosity function. We find that the UV luminosity function of cluster star-forming galaxies is consistent with the field. The difference between the cluster and field luminosity functions is entirely due to the contribution at low luminosities (MAB > -16 mag) of non-star-forming, early-type galaxies that are significantly overdense in clusters.

Original languageEnglish
Pages (from-to)L17-L20
JournalAstrophysical Journal
Volume623
Issue number1 II
DOIs
Publication statusPublished - 2005 Apr 10

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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