Are Superclusters Correlated on a Very Large Scale?
Abstract
A positive spatial correlation is observed among a complete sample of superclusters on a scale of 100/h Mpc. The correlation is significant at about the 95-99 percent confidence level, suggesting the possible existence of the largest structures yet detected. The correlation appears to be stronger than that of galaxies and galaxy clusters, indicating a continuation in the increasing strength of clustering with richness. The validity of the correlation suggested here could be tested at a high level of statistical significance by obtaining the redshift of all 1682 rich clusters in the complete Abell catalog, corresponding to redshifts of z not greater than about 0.2.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1986
- DOI:
- 10.1086/184598
- Bibcode:
- 1986ApJ...300L..35B
- Keywords:
-
- Galactic Clusters;
- Spatial Distribution;
- Astronomical Catalogs;
- Confidence Limits;
- Correlation;
- Red Shift;
- Significance;
- Astrophysics;
- GALAXIES: CLUSTERING