Statistical mechanics of the self-gravitating gases
| dc.creator | Siebert, Julien | |
| dc.date | 2005-09-27 | |
| dc.date.accessioned | 2026-07-07T06:19:15Z | |
| dc.date.available | 2026-07-07T06:19:15Z | |
| dc.description | The self-gravitating systems are formed by particles interacting through gravity. They describe structure formation in the universe. As a consequence of the long range interaction of gravity, they are inhomogeneous even at thermal equilibrium. We study the self-gravitating systems with several kinds of particles and the self-gravitating systems in the presence of the cosmological constant $ Lambda$. We formulate the statistical mechanics and the mean field approach describing the gaseous phase. We explicitely compute the density of particles and thermodynamic quantities. The presence of $ Lambda$ extends the domain of stability of the gaseous phase. Monte Carlo simulations show that the mean field describes the gaseous phase with an excellent accuracy. Scalling law of the self-gravitating systems with several kinds of particles is found. At the critical point the fractal dimension is independant of their composition and is $1.6...$~. | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0509808 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0509808 | |
| dc.identifier | Thèse de Doctorat, Université Pierre et Marie Curie - Paris VI (2005-06-24) - H.J. de Vega (Dir.) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/95007 | |
| dc.subject | Astrophysics | |
| dc.title | Statistical mechanics of the self-gravitating gases | |
| dc.type | text |