Constraints on the power spectrum of the primordial density field from large-scale data - Microwave background and predictions of inflation

Details Constraints on the power spectrum of the primordial density field from large-scale data - Microwave background and predictions of inflation Constraints on the power spectrum of the primordial density field from large-scale data - Microwave background and predictions of inflation

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...387l...1k&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 387, March 1, 1992, p. L1-L5.

Statistics

Computation

7

Density Distribution, Power Spectra, Relic Radiation, Universe, Computational Astrophysics, Cosmic Background Explorer Satellite, Probability Density Functions, Space Density

Scientific paper

It is shown here that, by using galaxy catalog correlation data as input, measurements of microwave background radiation (MBR) anisotropies should soon be able to test two of the inflationary scenario's most basic predictions: (1) that the primordial density fluctuations produced were scale-invariant and (2) that the universe is flat. They should also be able to detect anisotropies of large-scale structure formed by gravitational evolution of density fluctuations present at the last scattering epoch. Computations of MBR anisotropies corresponding to the minimum of the large-scale variance of the MBR anisotropy are presented which favor an open universe with P(k) significantly different from the Harrison-Zeldovich spectrum predicted by most inflationary models.

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