The growth of density perturbations in an open universe

Details The growth of density perturbations in an open universe The growth of density perturbations in an open universe

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pazh....7..323r&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal, vol. 7, June 1981, p. 323-333.) Soviet Astronomy Letters, vol. 7, May-June 1981, p. 179-184.

Physics

9

Density Distribution, Extraterrestrial Radiation, Perturbation Theory, Space Density, Universe, Abundance, Adiabatic Conditions, Background Radiation, Matter (Physics), Microwaves

Scientific paper

The evolution of density perturbations is calculated numerically for an open universe permeated with microwave background radiation and massless, weakly interacting particles. It is shown that for low baryon densities under 0.3, the current theory of galaxies being formed from small primordial adiabatic perturbations in the density of matter is in conflict with experiment. Difficulties confronting the theory of entropic density perturbations are also discussed.

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