An Overview of the Las Campanas Distant Cluster Survey

Details An Overview of the Las Campanas Distant Cluster Survey An Overview of the Las Campanas Distant Cluster Survey

2001-07-27

arxiv.org/abs/astro-ph/0107542v1

Astronomy and Astrophysics

Astrophysics

10 pages. to appear in the proceedings of AMiBA 2001: High-z Clusters, Missing Baryons, and CMB Polarization

Scientific paper

We present the Las Campanas Distant Cluster Survey, which has produced over a thousand galaxy cluster candidates at 0.35 < z < 1.1 (see Gonzalez et al. 2001 for the full catalog). We discuss the technique that enabled us to use short (~ 3 min) exposures and a small (1m) telescope to efficiently survey ~ 130 sq. deg. of sky. Follow-up imaging and spectroscopy using a wide array of telescopes including the Keck and VLT suggest that the bona-fide cluster fraction is ~70%. We construct methods to estimate both the redshift and cluster mass from the survey data themselves and discuss our first result on large-scale structure, the dependence of the cluster correlation length with mean cluster separation at z ~ 0.5 (Gonzalez, Zaritsky, & Wechsler 2001).

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