The stochastic dynamics of density fluctuations in a gravitating medium

Details The stochastic dynamics of density fluctuations in a gravitating medium The stochastic dynamics of density fluctuations in a gravitating medium

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987zhetf..92.1537r&link_type=abstract

Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki (ISSN 0044-4510), vol. 92, May 1987, p. 1537-1542. In Russian.

Astronomy and Astrophysics

Astronomy

Astronomical Models, Density Distribution, Gravitational Fields, Space Density, Stochastic Processes, Fluctuation Theory, Integral Equations

Scientific paper

The evolution of the density inhomogeneity in a gravitating medium is considered with allowance for the influence of surrounding inhomogeneities. In the framework of a spatially flat Friedmann model, it is shown that the collective stochastic gravitational field of the density fluctuations can significantly change the evolutionary rate of density contrasts. The scale of the spatial correlation of the fluctuations is estimated.

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