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For refcode 1994MNRAS.269..151D:
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Copyright by Royal Astronomical Society. 1994MNRAS.269..151D The APM Galaxy Survey - IV. Redshifts of rich clusters of galaxies G. B. Dalton, G. Efstathiou, S. J. Maddox and W. J. Sutherland Department of Physics. University of Oxford, Keble Road, Oxford OXl 3RH Accepted 1994 February 18. Received 1994 February 8; in original form 1993 November 17 ABSTRACT We present redshifts for a sample of 228 clusters selected from the APM Galaxy Survey, 188 of which are new redshift determinations. Redshifts are listed for 365 galaxies, and non-cluster galaxy redshifts have been rejected from this sample using a likelihood ratio test based on the projected and apparent magnitude distributions of each cluster region. We test this technique using clusters for which redshifts have been measured for more than 10 galaxies. Our redshift sample is nearly complete and has been used in previous papers to study the three-dimensional distribution of rich clusters of galaxies. 156 of the clusters in our sample are listed in the Abell catalogue or supplement, and the remainder are new cluster identifications. Key words: galaxies: clustering - galaxies: distances and redshifts - cosmology: observations. ========================================================================= 1995MNRAS.273..528D Erratum: The APM Galaxy Survey - IV. Redshifts of rich clusters of galaxies by G. B. Dalton, G. Efstathiou, S. J. Maddox and W. J. Sutherland Key words: galaxies: clusters: general - galaxies: distances and redshifts - cosmology: observations. The paper `The APM Galaxy Survey - IV. Redshifts of rich clusters of galaxies' was published in Mon. Not. R. Astron. Soc. 269, 151-165(1994). As a result of a numerical error in the procedure used to obtain identifications of Abell clusters for Tables 2 and 4, there are several APM clusters that have been misidentified as Abell clusters, and some Abell Clusters that should have been matched but were missed. This correction applies only to the entries in these tables of the original paper, and not to any part of the results. The corrected entries are listed in Table 1. All matches now represent an Abell cluster position that falls within 0.75 h^-1^ Mpc at the given redshift of the APM cluster. We are grateful to Heinz Andernach, and especially grateful to Harald
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