Galaxy clusters identified from the SDSS-DR6 (Wen+, 2009)

Details Galaxy clusters identified from the SDSS-DR6 (Wen+, 2009) Galaxy clusters identified from the SDSS-DR6 (Wen+, 2009)

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ycat..21830197w&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/183/197. Originally published in: 2009ApJS..183..197W

Computer Science

Redshifts, Clusters: Galaxy, Cross Identifications

Scientific paper

Clusters of galaxies in most of the previous catalogs have redshifts z<=0.3. Using the photometric redshifts of galaxies from the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we identify 39716 clusters in the redshift range 0.052x1014^M&sun;) clusters of z<=0.42. The false detection rate is ~5%. We obtain the richness, the summed luminosity, and the gross galaxy number within the determined radius for identified clusters. They are tightly related to the X-ray luminosity and temperature of clusters. Cluster mass is related to the richness and summed luminosity with M200{prop.to}R1.90+/-0.04^ and M200{prop.to}L1.64+/-0.03^r, respectively. In addition, 790 new candidates of X-ray clusters are found by cross-identification of our clusters with the source list of the ROSAT X-ray survey.
(2 data files).

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