Double inflation: A possible resolution of the large-scale structure problem

Details Double inflation: A possible resolution of the large-scale structure problem Double inflation: A possible resolution of the large-scale structure problem

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986stin...8720865t&link_type=abstract

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Computer Science

Computerized Simulation, Dark Matter, Models, Universe, Cosmology, Galactic Evolution, Mass

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 approx 100 Mpc, while the small-scale structure over less than or equal to 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.

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