The dynamical behaviour of a N-shell model for an expanding universe

Details The dynamical behaviour of a N-shell model for an expanding universe The dynamical behaviour of a N-shell model for an expanding universe

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.199..175h&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 199, no. 2, p. 175-183.

Statistics

Computation

Dynamic Models, Evolution (Development), Galactic Clusters, Many Body Problem, Universe, Computational Astrophysics, Gravitational Effects

Scientific paper

We consider a homogeneous expanding universe consisting of dust which is represented by N concentric massive spherical shells. We assume an explosive perturbation of the innermost shell at some instant of time. The effect of shell crossing and exchange of energy is investigated by deriving the equations of motion and obtaining their stationary and quasi-stationary solutions. Existing equilibrium stages and the density distribution for the N-shell system are discussed. Gravodynamics is a primary source for an understanding of gravitational clustering.

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