Nonlinear structures of self-gravitating systems

Details Nonlinear structures of self-gravitating systems Nonlinear structures of self-gravitating systems

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...227..317l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 227, no. 2, Jan. 1990, p. 317-323.

Statistics

Computation

9

Computational Astrophysics, Cosmology, Galactic Clusters, Gravitation Theory, Gravitational Collapse, Perturbation Theory, Self Consistent Fields

Scientific paper

The nonlinear structures of two-component self-gravitating systems are investigated by comparison with the treatment of nonlinear oscillations in plasma. It is shown that the structures of self-gravitating systems can be described by nonlinear coupled equations. There is a modulation instability with respect to the longitudinal perturbation; it may lead to collapse and formation of a pancakelike structure. For cosmic conditions, the characteristic structures are obtained on a very large scale: the clusters of galaxies, the superclusters, and the voids.

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