/ftp/cats/7/175



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VII/175  Edinburgh-Durham Southern Galaxy Cat. - Cluster Cat. (Lumsden+ 1992)
The following files can be converted to FITS (extension .fit .fiz or .fiZ)
	table3
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Query from: http://vizier.cds.unistra.fr/cgi-bin/VizieR?-source=VII/175
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drwxr-xr-x 257 cats archive 8192 Feb 8 10:28 [Up] drwxr-xr-x 2 cats archive 237 Jan 12 2023 [TAR file] -rw-r--r-- 1 cats archive 458 Dec 19 2022 .message -r--r--r-- 1 cats archive 6180 Feb 1 1997 ReadMe -rw-r--r-- 1 cats archive 372 Sep 19 2007 +footg5.gif -rw-r--r-- 1 cats archive 3496 Mar 5 2008 +footg8.gif -r--r--r-- 1 cats archive 64703 Feb 1 1997 table3
Beginning of ReadMe : VII/175 Edinburgh-Durham Southern Galaxy Cat. - Cluster Cat. (Lumsden+ 1992) ================================================================================ The Edinburgh-Durham southern galaxy catalogue - IV. The cluster catalog Lumsden S.L., Nichol R.C., Collins C.A., Guzzo L. <Mon. Not. R. Astron. Soc. 258, 1 (1992)> =1992MNRAS.258....1L ================================================================================ ADC_Keywords: Clusters, galaxy Keywords: catalogues-galaxies: clustering Abstract: We present the Edinburgh-Durham Cluster Catalogue (EDCC). This is the first machine-based, objectively selected sample of clusters of galaxies. It consists of 737 clusters or groups of all richnesses, over 0.5 sr of sky, centred on the South Galactic Pole (SGP). The primary galaAy data set for the cluster survey is the Edinburgh-Durham Southern Galaxy Catalogue (EDSGC). The EDCC was constructed using an automatic peak-finding algorithm and is complete to m_10_(b_j_) = 18.75. In a comparison with the Abell clusters in the same region, we detect 80 per cent of their rich clusters nominally brighter than our completion limit in addition to many new systems. This suggests that the EDCC is 90 per cent complete for Abell-type clusters. We also conclude that the Abell magnitude system is biased towards bright magnitudes for most of their clusters, and that their richness estimates are prone to a larger uncertainty than they suggest. The EDCC therefore supersedes the Abell catalogue as a data base for statistical studies of cluster properties. See also: J/MNRAS/274/1071 : Edinburgh-Milano cluster redshift survey (Collins+ 1995)