Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323..423t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 323, Dec. 15, 1987, p. 423-432. DOE-NASA-supported research.
Astronomy and Astrophysics
Astrophysics
22
Astronomical Models, Cosmology, Dark Matter, Galactic Clusters, Density Wave Model, Fourier Transformation, Universe, Velocity Distribution
Scientific paper
A model is presented for the large-scale structure of the universe in which two successive inflationary phases resulted in large small-scale and small large-scale density fluctuations. This bimodal density fluctuation spectrum in an Omega = 1 universe dominated by hot dark matter leads to large-scale structure of the galaxy distribution that is consistent with recent observational results. In particular, large, nearly empty voids and significant large-scale peculiar velocity fields are produced over scales of about 100 Mpc, while the small-scale structure over less than about 10 Mpc resembles that in a low-density universe, as observed. Detailed analytical calculations and numerical simulations are given of the spatial and velocity correlations.
Juszkiewicz Roman
Silk Joseph
Turner Michael S.
Villumsen Jens V.
Vittorio Nicola
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