Statistics – Computation
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.238.1261z&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 238, June 1, 1989, p. 1261-1280. Research supported by
Statistics
Computation
22
Computational Astrophysics, Gravitational Effects, Matter (Physics), Density Distribution, Distribution Functions, Evolution (Development), Relaxation
Scientific paper
In a recent paper Wiechen et al. (1988) have presented a new concept for the relaxation of collisionless self-gravitating matter. This paper is concerned with the problem of how to calculate final states of violent relaxation quantitatively, incorporating the energy distance of an initial distribution from its lowest energy state that is accessible under conservation of phase space density. The loss of information due to the relaxation is controlled by that energy distance. The dynamical evolution of an initial distribution is treated numerically for an example with spherical symmetry. The results are in good agreement with the predictions of the relaxation model.
Wiechen Heinz
Ziegler Harald J.
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