Mean field escapers in non-equilibrium systems

Details Mean field escapers in non-equilibrium systems Mean field escapers in non-equilibrium systems

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.170..267t&link_type=abstract

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640

Astronomy and Astrophysics

Astrophysics

4

Gravitational Fields, Halos, Stellar Evolution, Stellar Mass Ejection, Computerized Simulation, Galactic Clusters, Nonequilibrium Conditions, Stellar Models

Scientific paper

Results are reported from a study on nonequilibrium N-body systems that undergo initial collapse. This collapse is followed by global pulsations of the system. During these pulsations, the mean gravitational field fluctuates violently. Some particles pick up enough energy to be ejected from the system into the halo or even fly off to infinity. Also discussed are the region in phase space from which these mean-field escapers originate and their erergy frequency distribution, for the illustrative case of a uniform spherical initial state. The pulsations lead to the production of shells in the halo.

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