Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.191..685j&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 191, June 1980, p. 685-700.
Astronomy and Astrophysics
Astrophysics
74
Astronomical Catalogs, Astronomical Photometry, Astronomical Spectroscopy, Astrophysics, Galactic Clusters, Brightness, Luminosity, Radial Velocity, Star Distribution
Scientific paper
A spectroscopic and photometric study of galaxies on the UK-Schmidt/ESO Atlas field No. 358, which contains the Fornax cluster of galaxies, has been undertaken in order to obtain radial velocities of a complete, magnitude limited sample of galaxies in this field. All extragalactic objects brighter than 16.0 mag in the field are listed, and it was found that membership could be determined unambiguously, there being no galaxy with a velocity between 1982 km/s (cluster) and 4980 km/s (field). It is concluded that the Fornax cluster has fewer intrinsically faint galaxies with m between -19 and -16 than that expected on the basis of studies of rich galaxy clusters or small groups. In addition, the luminosity function is found to turn over much more rapidly than Schechter's (1976) form, and that early-type galaxies display the same overall luminosity function as the whole sample, whereas the later-type galaxies display a Gaussian-type luminosity function.
Jones Bernard J. T.
Jones Janet E.
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