Evolution of inhomogeneities in unstable-neutrino cosmologies

Details Evolution of inhomogeneities in unstable-neutrino cosmologies Evolution of inhomogeneities in unstable-neutrino cosmologies

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63..417d&link_type=abstract

(Astronomicheskii Zhurnal, vol. 63, May-June 1986, p. 417-425) Soviet Astronomy (ISSN 0038-5301), vol. 30, May-June 1986, p. 251

Astronomy and Astrophysics

Astronomy

1

Astronomical Models, Cosmology, Inhomogeneity, Magnetohydrodynamic Stability, Neutrinos, Perturbation Theory, Approximation, Radioactive Decay

Scientific paper

An attempt is made to show that many of the problems associated with the standard stable-particle 'pancake' cosmology can be resolved by modifying the cosmological model and the spectrum of primordial irregularities. Equations describing the growth of primordial perturbations in a cosmological model initially dominated by heavy unstable neutrinos are derived. The one-dimensional approximation is used to study evolution during the nonlinear growth phase.

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