Fitting Hyperbolic Universes to Cayon-Smoot Spots in COBE Maps
Abstract
On the possibility that the universe's matter density is low (Ω0 < 1), cosmologies can be considered with the metric of Friedmann's open universe but with closed hyperbolic manifolds as the physical three-space. These models have nontrivial spatial topology, with the property of producing multiple images of cosmic sources. Here a fit is attempted of 10 of these models to the physical cold and hot spots found by Cayón & Smoot in the COBE/DMR maps. These spots are interpreted as early, distant images of much nearer sources of inhomogeneity. The source for one of the cold spots is seen as the seed of a known supercluster.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- October 1996
- DOI:
- 10.1086/177847
- Bibcode:
- 1996ApJ...470...43F
- Keywords:
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- COSMOLOGY: THEORY;
- COSMOLOGY: COSMIC MICROWAVE BACKGROUND