Influence of environment on the luminosity function of galaxies |
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| Authors: | A P Mahtessian |
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| Institution: | 1. V. A. Ambartsumyan Byurakan Astrophysical Laboratory, Byurakan, Armenia
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| Abstract: | The luminosity function (LF) of galaxies in different environments is studied. A method proposed by the author is used to
determine the LF of galaxies. It is found that the luminosity functions of galaxies of different morphological types in single
galaxies and small groups do not differ greatly. The luminosity functions of galactic clusters differ greatly from the analogous
functions for other systems. A relatively large number of faint galaxies is observed in clusters. Groups with low dispersions
in their radial velocities and with small average pairwise distances between the members contain relatively many faint galaxies
and relatively few bright galaxies compared to groups with large dispersions in their radial velocities and large average
pairwise distances between members. This applies to elliptical and lenticular galaxies, as well as to spiral and irregular
galaxies. |
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