A simplified model of the formation of structures in dark matter

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The collapse of a rotating three-axis ellipsoid is approximated by a system of ordinary differential equations. 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 a three-axis ellipsoid are investigated numerically and analytically in this dynamic model.

Keywords: Dark matter; Large-scale structure of the Universe

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/10556790500473874

Affiliations: Moscow Engineering Physics Institute, Moscow, Russia

Publication date: October 1, 2005

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