Projection contamination in cluster catalogs - Are the Abell redshift sample correlations significant?

Details Projection contamination in cluster catalogs - Are the Abell redshift sample correlations significant? Projection contamination in cluster catalogs - Are the Abell redshift sample correlations significant?

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...338l...5d&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 338, March 1, 1989, p. L5-L8. Research supported by the Universit

Astronomy and Astrophysics

Astrophysics

83

Astronomical Catalogs, Galactic Clusters, Red Shift, Autocorrelation, Density Distribution

Scientific paper

The effect of projection contamination in the Abell catalog on the three-dimensional cluster autocorrelation function is estimated by constructing an uncontaminated catalog for D less than 4, R greater than 1. In the model studied, the galaxy number density field is a superposition of a uniform field and spherical halos centered on each cluster center. The profiles of the halos are derived from observed cluster-galaxy correlation functions. The distribution of cluster pairs in the uncontaminated catalog is much more isotropic, leaving no significant evidence for larger peculiar cluster velocites.

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