Double inflation - a possible resolution of the large-scale structure problem

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/165840· OSTI ID:5438170

Turner, M S; Villumsen, J V; Vittorio, N; Silk, J; Juszkiewicz, R

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. 44 references.

• Research Organization: Chicago Univ., IL (USA); Fermi National Accelerator Laboratory, Batavia, IL (USA); California Institute of Technology, Pasadena (USA); Roma I Universita (Italy); California Univ., Berkeley (USA)
• OSTI ID: 5438170
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 323; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGICAL MODELS
COSMOLOGY
DENSITY
DISTRIBUTION
FOURIER TRANSFORMATION
GALAXY CLUSTERS
INTEGRAL TRANSFORMATIONS
MASS DISTRIBUTION
MATHEMATICAL MODELS
NONLUMINOUS MATTER
PHYSICAL PROPERTIES
SPATIAL DISTRIBUTION
TRANSFORMATIONS
UNIVERSE