Gravitational collapse of a Brownian gas
Statistical Mechanics
2007-05-23 v1 Astrophysics
Abstract
We investigate a model describing the dynamics of a gas of self-gravitating Brownian particles. This model can also have applications for the chemotaxis of bacterial populations. We focus here on the collapse phase obtained at sufficiently low temperature/energy and on the post-collapse regime following the singular time where the central density diverges. Several analytical results are illustrated by numerical simulations.
Cite
@article{arxiv.cond-mat/0407397,
title = {Gravitational collapse of a Brownian gas},
author = {C. Sire and P. H. Chavanis},
journal= {arXiv preprint arXiv:cond-mat/0407397},
year = {2007}
}