Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....95..267p&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 95, Feb. 1988, p. 267-283.
Astronomy and Astrophysics
Astronomy
69
Corona Borealis Constellation, Galactic Clusters, Galactic Rotation, Astronomical Maps, Astronomical Photography, Astronomical Photometry, Red Shift, Spatial Distribution
Scientific paper
The dynamics of the Corona Borealis (Cor Bor) supercluster was studied on a sample of 1555 galaxies in the vicinity of the six Abell clusters (A2061, A2065, A2067, A2079, A2089, and A2092) which comprise the supercluster. For all galaxies in this sample, photographic R photometry and accurate positional data are available. New R photometry and/or new redshifts were obtained for 97 galaxies, bringing the number of galaxies in this system for which the redshifts are available to 182. The central cluster R band luminosity, X-ray luminosity, and surface density were correlated with the cluster velocity dispersion and virial mass. The amount of matter in the supercluster, estimated to be about 8.2 x 10 to the 15th solar masses, is considered to be sufficient to bind the six Cor Bor clusters, which are contained within a volume of about 13 Mpc in radius. Dynamical time scales are comparable with the Hubble time, making it unlikely that the system is virialized.
Geller Margaret J.
Huchra John P.
Postman Marc
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