The Red-Sequence Cluster Surveys

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 ${\Omega }_m$ and ${\sigma }_8$ 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.

4 pages, 1 figure, to appear in ASP Conference Series in the Proceedings of the "Cosmic Frontiers" conference held in Durham, 31st July - 4th August 2006)

Cited by in corpus (4)

• Observational Probes of Cosmic Acceleration
• The Red-Sequence Cluster Survey I: The Survey and Cluster Catalogs for Patches RCS0926+37 and RCS1327+29
• Formation of the First Black Holes: Current observational status
• Using Dark Matter Haloes to Learn about Cosmic Acceleration: A New Proposal for a Universal Mass Function