Nonlocal and collective relaxation in stellar systems

Details Nonlocal and collective relaxation in stellar systems Nonlocal and collective relaxation in stellar systems

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...410..543w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 410, no. 2, p. 543-551.

Statistics

Computation

38

Computational Astrophysics, Modal Response, Stellar Systems, Kinetic Theory, Many Body Problem, Stellar Evolution

Scientific paper

The modal response of stellar systems to fluctuations at large scales is presently investigated by means of analytic theory and n-body simulation; the stochastic excitation of these modes is shown to increase the relaxation rate even for a system which is moderately far from instability. The n-body simulations, when designed to suppress relaxation at small scales, clearly show the effects of large-scale fluctuations. It is predicted that large-scale fluctuations will be largest for such marginally bound systems as forming star clusters and associations.

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