Consequences of the COBE satellite results for the inflationary scenario

Details Consequences of the COBE satellite results for the inflationary scenario Consequences of the COBE satellite results for the inflationary scenario

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvl..69.3602s&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 69, no. 25, p. 3602-3605.

Astronomy and Astrophysics

Astronomy

112

Cosmic Background Explorer Satellite, Dark Matter, Gravitational Effects, Relic Radiation, Astronomical Models, Spaceborne Astronomy

Scientific paper

The discovery of the microwave background anisotropy by the Cosmic Background Explorer (COBE) satellite is in accord with the inflationary scenario. For five promising models involving a single scalar field, the coupling constants and the fluctuation spectra are calculated including a correction for gravitational radiation. The primordial density fluctuation spectrum computed from these models is not exactly scale invariant; the spectral index is constrained to be equal to or greater than 0.8 for inflation with an exponential potential (assuming that the biasing parameter for galaxies is less than 2). The implications for biased galaxy formation scenarios are discussed.

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