Mon. Not. R. Astron. Soc., 396, 2367-2378 (2009/July-2)
The Norma cluster (ACO3627) - II. The near-infrared Ks-band luminosity function.
SKELTON R.E., WOUDT P.A. and KRAAN-KORTEWEG R.C.
Abstract (from CDS):
A deep Ks-band photometric catalogue of galaxies at the core of the rich, nearby Norma cluster (ACO3627) is presented. The survey covers about 45x45arcmin2 (slightly less than 1/3 Abell radius), which corresponds to ∼0.8h–270Mpc2 at the adopted distance (vCMB/H0) of 70h–170 Mpc of this cluster. The survey is estimated to be complete to a magnitude of. This extends into the dwarf regime, 6 mag below. The catalogue contains 390 objects, 235 of which are classified as likely or definite galaxies and 155 as candidate galaxies. The Ks-band luminosity function (LF) is constructed from the photometric sample, using a spectroscopic subsample to correct for fore and background contamination. We fit a Schechter function with a characteristic magnitude of and faint-end slope of α = -1.26±0.10 to the data. The shape of the LF is similar to those found in previous determinations of the cluster LF, in both optical and near-infrared. The Schechter parameters agree well with those of recent field LFs, suggesting that the shape of both the bright-end and the faint-end slopes are relatively insensitive to environment.
© 2009 The Authors. Journal compilation © 2009 RAS
galaxies: clusters: individual: Norma cluster (ACO 3627) - galaxies: luminosity function, mass function - infrared: galaxies
VizieR on-line data:
<Available at CDS (J/MNRAS/396/2367): table2.dat>
Table 2: [SWK2009] KNNN (Nos K001-K390).
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