Spatial covariance function for rich clusters of galaxies
Journal Article
·
· Sov. Astron. Lett. (Engl. Transl.); (United States)
OSTI ID:6049046
In the distance range 5h/sup -1/< or =r< or =100h/sup -1/ Mpc (h = H/ (50 km sec/sup -1/ Mpc/sup -1/)) a fit to the spatial covariance function of Abell clusters of galaxies is provided by the power law xi(r) = ( (50h/sup -1/ Mpc)/r)/sup 1.6/. The covariance function is estimated from redshift measurements for rich clusters limited to the region r<480 Mpc, Vertical Bar b Vertical Bar> or =30/sup 0/. The significant disparity between the covariance functions for clusters and for individual galaxies is puzzling, but might represent evidence for a preferential scale clustering.
- Research Organization:
- Keldysh Institute of Applied Mathematics, USSR Academy of Sciences, Moscow
- OSTI ID:
- 6049046
- Journal Information:
- Sov. Astron. Lett. (Engl. Transl.); (United States), Journal Name: Sov. Astron. Lett. (Engl. Transl.); (United States) Vol. 9:1; ISSN SALED
- Country of Publication:
- United States
- Language:
- English
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