Gravity in one dimension - Quasi-equilibrium

Details Gravity in one dimension - Quasi-equilibrium Gravity in one dimension - Quasi-equilibrium

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...332..619r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 332, Sept. 15, 1988, p. 619-636. Research supported by the Robert A. Welch

Statistics

Computation

12

Computational Astrophysics, Computerized Simulation, Gravitation Theory, Gravitational Effects, Dynamical Systems, Periodic Variations, Virial Theorem

Scientific paper

This article concerns the evolution of a self-gravitating, dynamical system in one dimension. It studies the dependence of the relaxation time T on the system population, N. In a previous article the authors investigated the surprising conjecture that T < N (in suitable units) for systems initialized "near" equilibrium. Here the authors consider the dependence of relaxation on a single parameter, the virial ratio for a class (counterstreamed) of initial configurations in μ(x, v) space. Using a technique (dynamic ensemble averaging) new to this problem they find that relaxation to equilibrium does not occur for T < N; for these special states the systems are probably entering a long-lived "quasi-equilibrium" macro-state that mimics thermalization but which, in fact, is not microscopically relaxed.

Affiliated with

Also associated with

No associations

Rating

Gravity in one dimension - Quasi-equilibrium does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gravity in one dimension - Quasi-equilibrium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravity in one dimension - Quasi-equilibrium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-909461