Statistical description of nonequilibrium self-gravitating systems |
| |
Authors: | Sergiy B. Lev Bohdan I. Lev |
| |
Affiliation: | 1.Institute of Physics, National Academy of Science of Ukraine,Kyiv,Ukraine;2.Bogolyubov Institute for Theoretical Physics of the NAS of Ukraine,Kyiv,Ukraine;3.Department of Physics,Chungnam National University,Daejeon,Korea |
| |
Abstract: | Self-gravitating systems are non-equilibrium a priori. A new approach is proposed, which employs a non-equilibrium statistical operator that takes account inhomogeneous distribution of particles and temperature. The method involves a saddle-point procedure to find the dominant contributions to the partition function, thus obtaining all thermodynamic parameters of the system. Probable peculiar features in the behavior of the self-gravitating systems are considered for various conditions. The equation of state for self-gravitating systems has been determined. A new length of the statistical instability is obtained for a real gravitational system, as are parameters of the spatially inhomogeneous distribution of particles and temperature. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|