The dependence of the spin parameter, the angular momentum, the virial;ization radius, on the mass, for expanding density perturbations, are determined using a simple model and agreement is obtained with results from numerical simulations within hierarchical clustering scenario. The dependence of the spin parameter on the anisotropy parameter is also investigated, with special effort devoted to galaxies.
Spin parameter and scale-free density perturbations in hierarchical clustering
CAIMMI, ROBERTO
1993
Abstract
The dependence of the spin parameter, the angular momentum, the virial;ization radius, on the mass, for expanding density perturbations, are determined using a simple model and agreement is obtained with results from numerical simulations within hierarchical clustering scenario. The dependence of the spin parameter on the anisotropy parameter is also investigated, with special effort devoted to galaxies.
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