On the universality of the type-dependent luminosity functions
Received 13 November 1997 / Accepted 24 April 1998
We find that the bright part ( mag) of luminosity function of each Hubble type has the same shape in three poor clusters (Virgo, Fornax and Centaurus) and in two rich clusters (Coma and Cl0939+4713). The fact that these type-dependent luminosity functions are invariant in shape from poor to rich environments gives support to the hypothesis that they may be universal. We also present in tabular form improved type-dependent luminosity functions, based on a much larger sample than previous works.
Key words: galaxies: elliptical and lenticular, cD galaxies: spiral galaxies: luminosity function, mass function
© European Southern Observatory (ESO) 1998
Online publication: July 7, 1998