Statistics – Computation
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...328...69v&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 328, May 1, 1988, p. 69-76.
Statistics
Computation
49
Background Radiation, Cosmology, Dark Matter, Galactic Clusters, Universe, Computational Astrophysics, Correlation, Galactic Evolution, Perturbation Theory, String Theory
Scientific paper
The theoretical prejudice for a flat universe with an initially scale-invariant power spectrum has restricted the number of cosmological scenarios investigated for studying the formation of structure in the universe. A cold dark matter-dominated universe with a density parameter Omega(0) and a primordial spectral index n different from unity is considered, and its possible consistency with the inflationary model is discussed. It is shown that some of the difficulties of a flat cold dark matter scenario can be avoided by having Omega(0) less than 1 and n less than 1. For Omega(0) roughly 0.4 and n roughly 0.75 a good agreement is obtained with the large-scale drifts, the bounds on the cosmic microwave background smoothness, the Abell cluster abundance, and their correlation function.
Lucchin Francesco
Matarrese Sabino
Vittorio Nicola
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