We present the Galaxy Evolution Exlorer (GALEX) near-ultraviolet (2310 angstrom) and far-ultraviolet ( 1530 angstrom) galaxy luminosity functions of the nearby cluster of galaxies A1367 in the magnitude range -20.3 <= M-AB <= -13.3. The luminosity functions are consistent with previous (similar to 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 (M-AB > -16 mag) of non - star-forming, early-type galaxies that are significantly overdense in clusters.

Cortese, L., Boselli, A., Gavazzi, G., Paramo, J., Madore, B., Barlow, T., et al. (2005). The GALEX ultraviolet luminosity function of the cluster of galaxies A1367. THE ASTROPHYSICAL JOURNAL, 623(1), L17-L20 [10.1086/429993].

The GALEX ultraviolet luminosity function of the cluster of galaxies A1367

GAVAZZI, GIUSEPPE;
2005

Abstract

We present the Galaxy Evolution Exlorer (GALEX) near-ultraviolet (2310 angstrom) and far-ultraviolet ( 1530 angstrom) galaxy luminosity functions of the nearby cluster of galaxies A1367 in the magnitude range -20.3 <= M-AB <= -13.3. The luminosity functions are consistent with previous (similar to 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 (M-AB > -16 mag) of non - star-forming, early-type galaxies that are significantly overdense in clusters.
Articolo in rivista - Articolo scientifico
galaxies : clusters : individual (A1367); galaxies : evolution; galaxies : luminosity function, mass function; ultraviolet : galaxies
English
10-apr-2005
623
1
L17
L20
none
Cortese, L., Boselli, A., Gavazzi, G., Paramo, J., Madore, B., Barlow, T., et al. (2005). The GALEX ultraviolet luminosity function of the cluster of galaxies A1367. THE ASTROPHYSICAL JOURNAL, 623(1), L17-L20 [10.1086/429993].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/8027
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