Temperature correlations in a compact hyperbolic universe

Abstract

The effect of a non-trivial topology on the temperature correlations on the cosmic microwave background (CMB) in a small compact hyperbolic universe with volume comparable to the cube of the curvature radius is investigated. Because the bulk of large-angular CMB fluctuations is produced at the late epoch in low ${\Omega }_0$ models, the effect of a long wavelength cut-off due to the periodic structure does not lead to the significant suppression of large-angular power as in compact flat models. The angular power spectra are consistent with the COBE data for ${\Omega }_0\ge 0.1$.

4 pages, 5 figures, version accepted for publication in MNRAS

References in corpus (1)

• The Fluctuations of the Cosmic Microwave Background for a Compact Hyperbolic Universe

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