Optical & Sunyaev-Zel'dovich Observations of a New Sample of Distant Rich Galaxy Clusters in the ROSAT All Sky Survey

Abstract

Finding a sample of the most massive clusters with redshifts $z>0.6$ can provide an interesting consistency check of the $\Lambda$ cold dark matter ($\Lambda$CDM) model. Here we present results from our search for clusters with $0.6\lesssim z\lesssim 1.0$ where the initial candidates were selected by cross-correlating the RASS faint and bright source catalogues with red galaxies from the Sloan Digital Sky Survey DR8. Our survey thus covers $\approx 10,000\mathrm{de}{\mathrm{g}}^2$, much larger than previous studies of this kind. Deeper follow-up observations in three bands using the William Herschel Telescope and the Large Binocular Telescope were performed to confirm the candidates, resulting in a sample of 44 clusters for which we present richnesses and red sequence redshifts, as well as spectroscopic redshifts for a subset. At least two of the clusters in our sample are comparable in richness to RCS2-$J$232727.7$-$020437, one of the richest systems discovered to date. We also obtained new observations with the Combined Array for Research in Millimeter Astronomy for a subsample of 21 clusters. For 11 of those we detect the Sunyaev-Zel'dovich effect signature. The Sunyaev-Zel'dovich signal allows us to estimate $M_{200}$ and check for tension with the cosmological standard model. We find no tension between our cluster masses and the $\Lambda$CDM model.

29 pages, 13 figures, to be published in MNRAS 450, 4248-4276 (2015)

References in corpus (17)

• The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment
• Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey
• A complete sample of twelve very X-ray luminous galaxy clusters at z>0.5
• CLASH: Weak-Lensing Shear-and-Magnification Analysis of 20 Galaxy Clusters
• The Representative XMM-Newton Cluster Structure Survey (REXCESS) of an X-ray Luminosity Selected Galaxy Cluster Sample
• Cosmology and Astrophysics from Relaxed Galaxy Clusters II: Cosmological Constraints
• The 400 square degrees ROSAT PSPC galaxy cluster survey: Catalog and statistical calibration
• CARS: the CFHTLS-Archive-Research Survey; I. Five-band multi-colour data from 37 sq. deg. CFHTLS-Wide observations
• THELI -- Convenient reduction of any optical, near- and mid-infrared imaging data
• The performance of the blue prime focus Large Binocular Camera at the Large Binocular Telescope
• Simultaneous Falsification of LCDM and Quintessence with Massive, Distant Clusters
• Gemini/GMOS Spectroscopy of 26 Strong Lensing Selected Galaxy Cluster Cores
• Large Einstein Radii: A Problem for LambdaCDM
• Quantifying the rareness of extreme galaxy clusters
• The strongest gravitational lenses: II. Is the large Einstein radius of MACS J0717.5+3745 in conflict with LCDM?
• X-ray selected galaxy clusters in the Pan-STARRS Medium-Deep Survey
• Kinematic analysis of a sample of X-ray luminous distant galaxy clusters. The $L_X$ - ${\sigma }_v$ relation in the $z>0.6$ universe

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