A systematic survey for distant galaxy clusters

Details A systematic survey for distant galaxy clusters A systematic survey for distant galaxy clusters

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...306...30g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 306, July 1, 1986, p. 30-37. Research supported by the John D. and Catherin

Astronomy and Astrophysics

Astrophysics

175

Astronomical Catalogs, Galactic Clusters, Astronomical Photography, Cosmology, Red Shift, Surveys

Scientific paper

A photographic survey for faint clusters of galaxies has been carried out with fine-grained photographic emulsions using the 1.2 m Schmidt and 5 m Hale telescopes, as well as the 4 m Mayall telescope. A total of 418 clusters have been found with redshifts mostly in the range from 0.15 to 0.92. The survey was planned to minimize distance-dependent selection effects in the resulting catalog. In areas of sky where the deepest search was made, the sample is complete to about z = 0.50; there are 11 clusters per square degree at this limit. At a redshift of 1.0 there should be 63 or 45 clusters per square degree depending on whether q0 is 0.0 or 0.5, provided there is no evolution.

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