Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012ap.....55...34m&link_type=abstract
Astrophysics, Volume 55, Issue 1, pp.34-44
Astronomy and Astrophysics
Astrophysics
Galaxies, Groups Of Galaxies, Luminosity Function, Environments
Scientific paper
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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