All-sky catalogs of superclusters of Abell-ACO clusters

Details All-sky catalogs of superclusters of Abell-ACO clusters All-sky catalogs of superclusters of Abell-ACO clusters

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...407..470z&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 407, no. 2, p. 470-488.

Statistics

Computation

98

Astronomical Catalogs, Galactic Clusters, Sky Surveys (Astronomy), Computational Astrophysics, Distance, Red Shift

Scientific paper

We present the results of a statistical analysis of structures in the Abell and ACO catalogs of clusters of galaxies. For both catalogs we have improved upon distance estimates for clusters without measured radial velocity and we discuss in detail the calibration of the magnitude-redshift relation. Through a percolation analysis we have obtained catalogs of superclusters at various density excesses: we analyze their reality and global properties, focusing in particular on the problem of the possible existence of large peculiar motions of clusters in superclusters. We find (in agreement with recent similar studies) that these systems do not appear to be preferentially elongated along the radial direction and we derive an upper limit of about 1000 km/s for velocity dispersion of clusters in superclusters.

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