Restrictions on cosmological models placed by COBE's measurement of cosmic background anisotropies

Mathematics – Logic

Scientific paper

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Observational Cosmology, Background Radiations, Radio, Microwave

Scientific paper

The recent discovery of anisotropies in the cosmic microwave background (CMB) by the Cosmic Background Explorer (COBE) has spurred a high level of activity in cosmology. Having originated at the remotest epochs of the Universe within our reach, the CMB is in fact one of the most accurate probes of the early Universe and thus a powerful test for cosmological models. Limitations and restrictions to the power spectrum of primordial perturbations are derived, taking into account the statistical properties of galactic clustering. Topological analysis of COBE's anisotropy maps is used to test for the consistency of cosmological models with observations.

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