Average density in cosmology
Journal Article
·
· Astrophys. J.; (United States)
The Einstein-Straus (1945) vacuole is here used to represent a bound cluster of galaxies embedded in a standard pressure-free cosmological model, and the average density of the cluster is compared with the density of the surrounding cosmic fluid. The two are nearly but not quite equal, and the more condensed the cluster, the greater the difference. A theoretical consequence of the discrepancy between the two densities is discussed. 25 references.
- Research Organization:
- Cape Town Univ., Rondebosch, Republic of South Africa
- OSTI ID:
- 6238530
- Journal Information:
- Astrophys. J.; (United States), Vol. 316
- Country of Publication:
- United States
- Language:
- English
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