On the collective relaxation in self-gravitating stellar systems

Details On the collective relaxation in self-gravitating stellar systems On the collective relaxation in self-gravitating stellar systems

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.249..241s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 249, March 15, 1991, p. 241-247.

Statistics

Computation

10

Computational Astrophysics, Relaxation Time, Stellar Gravitation, Stellar Systems, Astronomical Models, Many Body Problem

Scientific paper

The applicability of the method of the geodesic deviations to relaxation processes in stellar systems is studied. The one-dimensional self-gravitating N-sheet model, is used to investigate the relationship of the value of the curvature in the equation of the geodesic deviations to two relaxation time-scales observed in numerical simulations. The expected correspondence between them does not exist. It follows that the rapid time-scale of the relaxation, suggested by Gurzadyan and Savvidy (1986), has nothing to do with the evolution of macroscopic observables.

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