J/ApJS/199/34 132684 clusters of galaxies in SDSS-III (Wen+, 2012) ================================================================================ A catalog of 132,684 clusters of galaxies identified from Sloan Digital Sky Survey III. Wen Z.L., Han J.L., Liu F.S. =2012ApJS..199...34W (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Clusters, galaxy ; Photometry, SDSS ; Redshifts Keywords: galaxies: clusters: general - galaxies: distances and redshifts Abstract: Using the photometric redshifts of galaxies from the Sloan Digital Sky Survey III (SDSS-III), we identify 132684 clusters in the redshift range of 0.05<=z<0.8. Monte Carlo simulations show that the false detection rate is less than 6% for the whole sample. The completeness is more than 95% for clusters with a mass of M_200_>1.0x10^14^M_{sun}_ in the redshift range of 0.05<=z<0.42, while clusters of z>0.42 are less complete and have a biased smaller richness than the real one due to incompleteness of member galaxies. We compare our sample with other cluster samples, and find that more than 90% of previously known rich clusters of 0.05<=z<0.42 are matched with clusters in our sample. Richer clusters tend to have more luminous brightest cluster galaxies (BCGs). Correlating with X-ray and the Planck data, we show that the cluster richness is closely related to the X-ray luminosity, temperature, and Sunyaev-Zel'dovich measurements. Comparison of the BCGs with the SDSS luminous red galaxy (LRG) sample shows that 25% of LRGs are BCGs of our clusters and 36% of LRGs are cluster member galaxies. In our cluster sample, 63% of BCGs of r_petro_<19.5 satisfy the SDSS LRG selection criteria. Description: Wen et al. (2009, Cat. J/ApJS/183/197) identified 39668 galaxy clusters from the SDSS DR6 by the discrimination of member galaxies of clusters using photometric redshifts of galaxies. Wen & Han (2011ApJ...734...68W) improved the method and successfully identified the high-redshift clusters from the deep fields of the Canada-France-Hawaii Telescope (CFHT) Wide survey, the CHFT Deep survey, the Cosmic Evolution Survey, and the Spitzer Wide-area InfraRed Extragalactic survey. Here, we follow and improve the algorithm to identify clusters from SDSS-III (SDSS Data Release 8; Aihara et al. 2011ApJS..193...29A, see Cat. II/306). File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 106 132684 Clusters of Galaxies Identified from the SDSS-III -------------------------------------------------------------------------------- See also: II/306 : The SDSS Photometric Catalog, Release 8 (Adelman-McCarthy+, 2011) VII/110 : Rich Clusters of Galaxies (Abell+ 1989) VII/4 : Abell and Zwicky Clusters of Galaxies (Abell+ 1974) J/A+A/540/A106 : SDSS DR8 groups and clusters of galaxies (Tempel+, 2012) J/ApJ/736/21 : Galaxy clusters optical catalog from AMF on SDSS DR6 (Szabo+ 2011) J/ApJS/183/197 : Galaxy clusters identified from the SDSS-DR6 (Wen+, 2009) J/ApJ/660/239 : MaxBCG catalog of 13823 galaxy clusters from SDSS (Koester+, 2007) J/ApJS/167/1 : Galaxy groups and clusters from SDSS (Berlind+, 2006) J/ApJS/148/243 : Catalog of clusters of galaxies from SDSS (Bahcall+, 2003) Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 A3 --- --- [WHL] 5- 20 A16 --- [WHL2012] Cluster name (JHHMMSS.s+DDMMSS) 22- 30 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000) 32- 40 F9.5 deg DEdeg Declination in decimal degrees (J2000) 42- 47 F6.4 --- zp Photometric redshift 49- 55 F7.4 --- zsp ?=-1 Spectroscopic redshift of BCG 57- 61 F5.2 mag rmag BCG r band magnitude 63- 66 F4.2 Mpc r200 Cluster r_200_ value (1) 68- 73 F6.2 --- RL* Cluster richness 75- 77 I3 --- N200 Number of member galaxy candidates within r200 79-106 A28 --- Other Other catalog(s) containing the cluster (2) -------------------------------------------------------------------------------- Note (1): The radius within which the mean density of a cluster is 200 times of the critical density of the Universe. Note (2): Catalog as follows: Abell = Abell 1958, Cat. VII/4; Abell et al. 1989, Cat. VII/110; maxBCG = Koester et al. 2007, Cat. J/ApJ/660/239; WHL09 = Wen et al. 2009, Cat. J/ApJS/183/197; GMBCG = Hao et al. 2010ApJS..191..254H; AMF = Szabo et al. 2011, Cat. J/ApJ/736/21. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 14-Jun-2012