On the formation and evolution of clumps of galaxies in an expanding universe

Details On the formation and evolution of clumps of galaxies in an expanding universe On the formation and evolution of clumps of galaxies in an expanding universe

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224..293n&link_type=abstract

Astrophysical Journal, Part 1, vol. 224, Sept. 1, 1978, p. 293-301. Research supported by the University of California

Astronomy and Astrophysics

Astrophysics

6

Astronomical Models, Cosmology, Galactic Clusters, Galactic Evolution, Gravitational Fields, Universe, Boundary Value Problems, Diffusion Coefficient, Eigenvectors, Fourier Transformation, Landau Damping, Laplace Transformation, Phase Velocity, Vlasov Equations

Scientific paper

Results are derived for the development of phase-space clumps of mass points in a background spectrum of gravitational-potential fluctuations. The Vlasov equation and the pair correlation equation (in the weak coupling limit) are solved exactly in an Einstein-de Sitter cosmology, and the plasma-clumping theory is used to identify terms that yield important collective effects. Various astrophysical implications are discussed, including the formation of large-scale inhomogeneity and the enhanced generation of correlations in the distribution of galaxies.

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