The Northern Sky Optical Cluster Survey: Towards the Mass Function

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We have recently completed a new cluster survey utilizing the Digitized Second Palomar Observatory Sky Survey (DPOSS). This survey, the Northern Sky Optical Cluster Survey, covers 10,000 square degrees, and contains nearly 20,000 candidate galaxy clusters out to z 0.3. The catalog has extremely well characterized completeness functions in both redshift and richness, allowing us to select physically distinct subsamples for follow-up studies. We are undertaking an extensive spectroscopic campaign to obtain dynamical masses for a volume and mass limited sample of clusters, to construct the cluster mass function at z=0.1-0.2.

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