Gravitational clustering from scale-free initial conditions

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galactic Clusters, Gravitational Effects, Many Body Problem, Autocorrelation, Galactic Structure, Mass Distribution

Scientific paper

A series of N-body experiments have been performed in order to investigate gravitational clustering from scale-free initial conditions in an Einstein-de Sitter universe. The three-dimensional shapes, angular momenta, and internal velocity distributions of clumps are studied. It is shown that in general, although nonlinear clustering destroys the hierarchical arrangement of the initial conditions, their scaling properties still determine the scaling properties of the mass distribution at high density contrast.

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