Galaxy clusters with multiple components. II - Abell 115

Details Galaxy clusters with multiple components. II - Abell 115 Galaxy clusters with multiple components. II - Abell 115

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...264..356b&link_type=abstract

Astrophysical Journal, Part 1, vol. 264, Jan. 15, 1983, p. 356-363.

Astronomy and Astrophysics

Astrophysics

44

Galactic Clusters, Red Shift, X Ray Sources, Astronomical Spectroscopy, Charge Coupled Devices, Density Distribution, Velocity Distribution

Scientific paper

Abell 115 is a galaxy cluster with two large enhancements in X-ray surface brightness. A map of the galaxy distribution over an extended region reveals the presence of three primary clumps of galaxies. Two of these correspond to the peaks in the X-ray surface brightness. A third clump, 7 arcmin to the east of the pair, has no X-ray emission detected by the Einstein Observatory. Redshifts are measured for 29 galaxies in the region; 10 are certainly members of foreground groups. A115, at z approximately 0.2, is the highest redshift cluster for which any extensive attempt has been made to study the system dynamics.

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