AAS 197, January 2001
Session 107. Galaxy Clusters and Large Scale Structure II
Display, Thursday, January 11, 2001, 9:30-4:00pm, Exhibit Hall

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[107.01] The Northern Sky Optical Cluster Survey: Galaxy Clusters from 10,000 Square Degrees in DPOSS

R. R. Gal (Palomar Observatory, Caltech), R. R. de Carvalho (Observatorio Nacional, Brazil), S. C. Odewahn (Department of Physics and Astronomy, Arizona State University), S. G. Djorgovski, P. A. Lopes (Palomar Observatory, Caltech)

We present the latest results from the Northern Sky Optical Cluster Survey, a project to detect galaxy clusters in the Digitized Second Palomar Observatory Sky Survey (DPOSS). Nearly 10,000 square degrees of the northern sky has been catalogued, photometrically calibrated, and used to detect clusters to z~0.3. We discuss survey contamination and redshift distribution based on follow-up spectroscopy of 3,000 galaxies in a complete sample of 100 candidate clusters. We also present an improved photometric redshift estimator for these clusters.

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The author(s) of this abstract have provided an email address for comments about the abstract: rrg@astro.caltech.edu

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