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Environmental effects on galaxy luminosity functions: the cluster Abell 496
Authors:F. Durret  C. Adami  C. Lobo
Affiliation:(1) IAP, 98bis Bd Arago, 75014 Paris, France;(2) LAM, Traverse du Siphon, 13012 Marseille, France;(3) CAUP, R. Estrelas, 4150-762 Porto, Portugal;(4) DMA/FCUP, R. Campo Alegre, Porto, Portugal
Abstract:We have derived the galaxy luminosity function in various regions of the cluster of galaxies Abell 496 from a wide field image in the I band. A Schechter function fit in the 17≤ IAB ≤22(–19.5≤ MIAB ≤ –14.5) magnitude interval gives a steep power law index, which is somewhat steeper in the outer regions than in the inner zones. This result agrees with previous findings obtained by several teams on the Coma cluster and can be interpreted as due to the fact that faint galaxies are accreted by large ones in the central regions. This revised version was published online in July 2006 with corrections to the Cover Date.
Keywords:Galaxy luminosity functions
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