The las campanas distant cluster survey correlation function

Anthony H. Gonzalez, Dennis Zaritsky, Risa H. Wechsler

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

We present the first nonlocal (z > 0.2) measurement of the cluster-cluster spatial correlation length, using data from the Las Campanas Distant Cluster Survey (LCDCS). We measure the angular correlation function for velocity dispersion-limited subsamples of the catalog at estimated redshifts of 0.35 ≤ zest < 0.575 and derive spatial correlation lengths for these clusters via the cosmological Limber equation. The correlation lengths that we measure for clusters in the LCDCS are consistent both with local results for the APM cluster catalog and with theoretical expectations based upon the Virgo Consortium Hubble Volume simulations and the analytic predictions. Despite samples containing over 100 clusters, our ability to discriminate between cosmological models is limited because of statistical uncertainty.

Original languageEnglish (US)
Pages (from-to)129-135
Number of pages7
JournalAstrophysical Journal
Volume571
Issue number1 I
DOIs
StatePublished - May 20 2002

Keywords

  • Galaxies: clusters: general
  • Large-scale structure of universe

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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