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Title:
The distribution of nearby rich clusters of galaxies
Authors:
Postman, Marc; Huchra, John P.; Geller, Margaret J.
Affiliation:
AA(Space Telescope Science Institute, Baltimore, MD), AB(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA), AC(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 384, Jan. 10, 1992, p. 404-422. Research supported by Smithsonian Institution and NASA. (ApJ Homepage)
Publication Date:
01/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
GALACTIC CLUSTERS, GALACTIC EVOLUTION, RED SHIFT, SPATIAL DISTRIBUTION, ASTRONOMICAL SPECTROSCOPY, STATISTICAL ANALYSIS
DOI:
10.1086/170883
Bibliographic Code:
1992ApJ...384..404P

Abstract

Redshifts are acquired for a complete sample of 351 Abell clusters with tenth-ranked galaxy magnitudes (m10) less than or equal to 16.5, including 115 entirely new cluster redshifts. Analysis of the spatial distribution of these clusters reveals no clustering on scales larger than 75/h Mpc. The correlation length is 20.0 (+/-4.3)/h Mpc, consistent with the results from other surveys. The frequency of voids with radii of order 60/h Mpc or less is consistent with the form and amplitude of the observed two-point correlation function. There is no significant difference between the clustering properties of clusters with RC = 0 and RC not less than 1. A percolation analysis yields 23 superclusters, 17 of which are new. The superclusters are not significantly elongated in the radial direction; large-scale peculiar motions are of order 1000 km/s or less.

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