3-d nearest neighbours test for Abell clusters of galaxies.
Abstract
The results of a three-dimensional test of nearest neighbors for large-scale structures in the universe are presented. A very strong tendency is found toward grouping in double clusters. In general, the probabilities in the three-dimensional case are much higher than those in the two-dimensional case, and characteristic sizes are also larger. In addition, the approach favors models of a hierarchical grouping of galaxy clusters with an almost continuous spectrum.
- Publication:
-
Bolgarska Akademiia Nauk Doklady
- Pub Date:
- 1980
- Bibcode:
- 1980BlDok..33....7K
- Keywords:
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- Astronomy;
- Galactic Clusters;
- Universe;
- Correlation;
- Astronomy;
- Clusters of Galaxies:Membership