A GMBCG GALAXY CLUSTER CATALOG OF 55,424 RICH CLUSTERS FROM SDSS DR7

By Jiangang Hao, T. McKay, Benjamin P. Koester, Eli S. Rykoff, E. Rozo, James Annis, Risa Wechsler, August E. Evrard, S. Siegel, Matthew R. Becker and 4 more. 2010

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We present a large catalog of optically selected galaxy clusters from the application of a new Gaussian Mixture Brightest Cluster Galaxy (GMBCG) algorithm to SDSS Data Release 7 data. The algorithm detects clusters by identifying the red-sequence plus brightest cluster galaxy (BCG) feature, which is unique for galaxy clusters and does not exist among field galaxies. Red-sequence clustering in color space is detected using an Error Corrected Gaussian Mixture Model. We run GMBCG on 8240 deg2 of photometric data from SDSS DR7 to assemble the largest ever optical galaxy cluster catalog, consisting of over 55,000 rich clusters across the redshift range from 0.1 < z < 0.55. We present Monte Carlo tests of completeness and purity and perform cross-matching with X-ray clusters and with the maxBCG sample at low redshift. These tests indicate high completeness and purity across the full redshift range for clusters with 15 or more members.

Subfields: Astronomy and Astrophysics, Ecology, Plant Science

View Paper: https://www.semanticscholar.org/paper/de2502ab89707c30ddc03c3a2adfba01c57d87c9

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Citations in the corpus

Nine New Repeating Fast Radio Burst Sources from CHIME/FRB (2020, methodology): “Using these zmax values, we searched various catalogues of nearby galaxy clusters (Abell et al. 1989; Böhringer et al. 2000; Wen et al. 2017; Hao et al. 2010) and found none within the localization regions of the FRBs.”
redMaPPer. I. ALGORITHM AND SDSS DR8 CATALOG (2013, background): “…Durret et al. 2011; Szabo et al. 2011; Soares-Santos et al. 2011; Wen et al. 2012), and those utilizing the cluster red-sequence (e.g., Annis et al. 1999; Gladders & Yee 2000; Koester et al. 2007a; Gladders et al. 2007; Gal et al. 2009; Thanjavur et al. 2009; Hao et al. 2010b; Murphy et al. 2012).”
The Atacama Cosmology Telescope: Sunyaev-Zel'dovich selected galaxy clusters at 148 GHz from three seasons of data (2013, methodology): “References: (1) [119]; (2) [33]; (3) [34]; (4) [2]; (5) [63]; (6) [118]; (7) [17]; (8) [41]; (9) [30]; (10) [35].”
Galaxy Alignments: Observations and Impact on Cosmology (2015, methodology): “…have been used to generate catalogues that contain 2See Joachimi et al. (2015) for details of the history of these observations and the messy nomenclature that resulted. hundreds of thousands of groups and clusters (e.g., Koester et al. 2007; Hao et al. 2010; Wen et al. 2012; Rykoff et al. 2014).”
THE REDMAPPER GALAXY CLUSTER CATALOG FROM DES SCIENCE VERIFICATION DATA (2016, background): “There are already a wide range of photometric cluster finders (e.g. Goto et al. 2002; Gladders et al. 2007; Koester et al. 2007a; Hao et al. 2010; Soares-Santos et al. 2011; Szabo et al. 2011; Wen et al. 2012; Murphy et al. 2012; Ascaso et al. 2012, 2014; Oguri 2014), each with various strengths…”
Observational probes of cosmic acceleration (2012, background): “5) and wide catalogs, which can contain upwards of 50,000 clusters (e.g. Koester et al., 2007; Wen et al., 2009; Hao et al., 2010; Szabo et al., 2010).”
CLASH: WEAK-LENSING SHEAR-AND-MAGNIFICATION ANALYSIS OF 20 GALAXY CLUSTERS (2014, background): “Zitrin et al. (2012) analyzed the strong-lensing signature of 10,000 clusters from the Gaussian Mixture Brightest Cluster Galaxy (GMBCG; Hao et al. 2010) catalog, finding a small mean offset of ' 13 kpch−1 between the BCG and the smoothed optical light that is assumed to trace the DM in their…”
THE SLOAN DIGITAL SKY SURVEY COADD: 275 deg2 OF DEEP SLOAN DIGITAL SKY SURVEY IMAGING ON STRIPE 82 (2011, methodology): “Preliminary cluster catalogs have been pursued by our group using the Gaussian Mixture Brightest Cluster Galaxy (Hao et al. 2010) and the Voronoi Tessellation cluster finder in 2+1 dimensions (Soares-Santos et al. 2011, VT) algorithms.”