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Redshift -magnitude bands in clusters of galaxies

Published online by Cambridge University Press:  12 April 2016

W. G. Tifft
W. G. Tifft*
Affiliation:
Steward Observatory, Tucson Arizona

Extract

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This paper presents new material and analysis for three clusters of galaxies. We assume familiarity with the initial Coma work (Tifft 1972, 3). Redshifts and nuclear magnitudes are now available for 108 Perseus galaxies. The sample is nearly complete to radius and V(6)=16.8 (6″ scaled from in Coma). No field galaxies are seen, not surprising in view of field studies in the Coma region (Tifft and Gregory 1976). Table 1 shows average data. The central field has a mean redshift 700 km/s less than the outer part, a difference independent of magnitude and significant at the 99.9 confidence level. A redshift excess appears around N1275 and N1265. Excluding these radio regions the difference exceeds 1000 km/s.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 37: Décalages vers le rouge et Expansion de l’Univers , 1977 , pp. 159 - 165
Copyright
Copyright © Editions du CNRS 1977

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