Nonequilibrium stationary states of 3D self-gravitating systems
Statistical Mechanics
2014-09-09 v1 Astrophysics of Galaxies
Abstract
Three dimensional self-gravitating systems do not evolve to thermodynamic equilibrium, but become trapped in nonequilibrium quasistationary states. In this Letter we present a theory which allows us to a priori predict the particle distribution in a final quasistationary state to which a self-gravitating system will evolve from an initial condition which is isotropic in particle velocities and satisfies a virial constraint 2K=-U, where K is the total kinetic energy and U is the potential energy of the system.
Keywords
Cite
@article{arxiv.1409.2060,
title = {Nonequilibrium stationary states of 3D self-gravitating systems},
author = {Fernanda P. C. Benetti and Ana C. Ribeiro-Teixeira and Renato Pakter and Yan Levin},
journal= {arXiv preprint arXiv:1409.2060},
year = {2014}
}