The Fluctuations of the Cosmic Microwave Background for a Compact Hyperbolic Universe
Open Access
- 20 October 1999
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 524 (2) , 497-503
- https://doi.org/10.1086/307848
Abstract
The fluctuations of the cosmic microwave background (CMB) are investigated for a small, open universe, i.e., one that is periodically composed of a small fundamental cell. The evolution of initial metric perturbations is computed using the first 749 eigenmodes of the fundamental cell in the framework of linear perturbation theory using a mixture of radiation and matter. The fluctuations of the CMB are investigated for various density parameters Ω0, taking into account the full Sachs-Wolfe effect. The corresponding angular power spectrum, Cl, is compared with recent experiments.Keywords
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