Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....94.1116c&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 94, Nov. 1987, p. 1116-1125.
Astronomy and Astrophysics
Astronomy
49
Astronomical Catalogs, Dwarf Galaxies, Elliptical Galaxies, Galactic Clusters, Luminosity, Comparison, Velocity, Virgo Galactic Cluster
Scientific paper
A catalog of 145 dwarf elliptical galaxies in the Fornax cluster is presented which is believed to be complete to a blue magnitude of 18.5, although galaxies with luminosities 2 mag below that limit have been found. The dwarf galaxies are less centrally concentrated in the cluster than are the bright galaxies. The ratio of the number of dwarf elliptical to elliptical galaxies is significantly smaller than the ratio found in the Virgo cluster. Interestingly, the ratio of dwarf ellipticals to actively star-forming galaxies (spirals and irregulars) in Fornax is similar to that in Virgo. The form of the velocity distribution of the dE's and star-forming galaxies is non-Gaussian, whereas that for the E/S0 galaxies is Gaussian. The velocity dispersion of the E/S0 group is low, at 300 km s-1.
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