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G. Wilson (Spitzer Science Center), A. Muzzin (University of Toronto), M. Lacy (Spitzer Science Center), C. J. Lonsdale (IPAC), J. Surace (Spitzer Science Center), H. K. C. Yee (University of Toronto), H. Hoekstra (University of Victoria), M. D. Gladders (Carnegie Observatories), Spitzer First Look Survey Team, Spitzer SWIRE Survey Team
We present an infrared adaptation of the highly successful two-filter Cluster Red-Sequence technique. The CRS algorithm selects clusters by identifying overdensities of red early-type galaxies. We demonstrate the effectiveness of this one-color approach by applying it to the Spitzer First Look Survey and SWIRE Legacy Survey. We show examples of cluster candidates in this redshift range. We also discuss the power of infrared observations for studying the evolution of galaxies in clusters (stellar mass content, dust-obscured star formation rates, epoch of formation).
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.