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arXiv · astro-ph/0701839

The Red-Sequence Cluster Surveys

H. K. C. Yee·M. D. Gladders·D. G. Gilbank·S. Majumdar·H. Hoekstra·E. Ellingson·the RCS-2 Collaboration
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Abstract

The Red-Sequence Cluster Surveys (RCS-1 and RCS-2) are large optical imaging surveys optimized to create well-characterized catalogs of clusters of galaxies up to a redshift of ~1. We describe our first cosmological analysis, using the self-calibration technique, of a cluster sample of ~1000 from the 90 sq. deg RCS-1, using optical richness as a mass proxy. We obtain values for the cosmological parameters $Ω_m$ and $σ_8$ that are in excellent agreement with the year-three WMAP results. Furthermore, the derived cluster richness-mass relationship is entirely consistent with those measured directly using dynamical mass measurements.

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H. K. C. Yee, M. D. Gladders, D. G. Gilbank, S. Majumdar, H. Hoekstra, E. Ellingson, the RCS-2 Collaboration. 2007-01-29. The Red-Sequence Cluster Surveys. https://arxiv.org/abs/astro-ph/0701839

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