Dynamics of small perturbations in a multicomponent cosmological medium

Details Dynamics of small perturbations in a multicomponent cosmological medium Dynamics of small perturbations in a multicomponent cosmological medium

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pazh...12..179n&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 12, Mar. 1986, p. 179-186) Soviet Astronomy Letters (ISSN 0360-0327), vol. 12, Mar.-Apr

Statistics

Computation

1

Big Bang Cosmology, Computational Astrophysics, Equations Of Motion, Interstellar Space, Mass Distribution, Perturbation Theory, Bessel Functions, Cosmic Dust, Equations Of State, Polytropic Processes

Scientific paper

Analytical solutions of the equation of small perturbations in a three-component cosmological medium are obtained. The addition of dust and polytropic-type components do not change the analytical expressions for corresconding modes. It is concluded that the dynamics of small perturbations is described in the case of a medium consisting of γ = 4/3 components by power laws, in the case of identical γ ≠ 4/3 components by Bessel functions, and in the case of dust and γ = 4/3 components with only one γ ≠ 4/3 component by Meier functions.

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