Other
Scientific paper
Mar 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.178..701m&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 178, Mar. 1977, p. 701-715.
Other
83
Elliptical Galaxies, Galactic Clusters, Radial Velocity, Red Shift, Spiral Galaxies, Astronomical Spectroscopy, Galactic Nuclei, Galactic Structure, Luminous Intensity, Velocity Distribution
Scientific paper
Redshifts are presented for galaxies in the Abell 262 cluster and for galaxies within approximately 2 deg on the sky of the Pisces group, otherwise known as the chain of galaxies centered on NGC 383. Mean redshifts and corrected velocity dipersions are determined for both groupings, the distribution of bright galaxies in Abell 262 is shown to exhibit a flattened structure, and the problem of distinguishing cluster members from nonmembers is examined. Velocity distributions are compared for the Virgo, Abell 1367, Abell 262, Abell 194, and Centaurus clusters. A model of cluster formation involving the collapse of an expanding initial bound perturbation is considered, and virial-mass determination is discussed.
Dickens R. J.
Moss Calvin
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