Approximate Dynamics of Dark Matter Ellipsoids

Details Approximate Dynamics of Dark Matter Ellipsoids Approximate Dynamics of Dark Matter Ellipsoids

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mgm..conf.2331b&link_type=abstract

"THE ELEVENTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation an

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Scientific paper

Collapse of a non-collisional dark matter and formation of pancake structures in the universe are investigated approximately. The collapse is described by a system of ordinary differential equations, in the model of a uniformly rotating, 3-axis, uniform density ellipsoid. Violent relaxation, mass, and angular momentum losses are taken into account phenomenologically. The formation of the equilibrium configuration, secular instability and transition from a spheroid to 3-axis ellipsoid are investigated numerically and analytically in this dynamical model.

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