Nearby galaxies. II - Luminosity function and spatial distribution

Details Nearby galaxies. II - Luminosity function and spatial distribution Nearby galaxies. II - Luminosity function and spatial distribution

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992an....313..329s&link_type=abstract

Astronomische Nachrichten (ISSN 0004-6337), vol. 313, no. 6, p. 329-340.

Mathematics

Logic

14

Galactic Structure, Luminosity, Milky Way Galaxy, Spatial Distribution, Galactic Mass, Interstellar Extinction

Scientific paper

A sample of nearby galaxies has been analyzed with regard to the luminosity function and the spatial distribution. The main results are as follows: (1) a relation between the slope of the luminosity function of the members of a group of galaxies and the earliest morphological type in this group has been detected which possibly is a new kind of environmental effects; (2) the virial masses of the groups of galaxies are, on the average, by a factor three to four greater, only, than the luminous masses derived from the individual galaxy masses; (3) the nearby galaxies are concentrated in a thin disk-like layer around the supergalactic plane the thickness of which is a few hundred kiloparsecs, only; (4) a population of field galaxies with nearly constant density is extended into the voids on both the supergalactic hemispheres.

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