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- Title
Local thermal equilibrium and ideal gas Stephani universes.
- Authors
Bartolomé Coll; Joan Josep Ferrando
- Abstract
Abstract The Stephani universes that can be interpreted as an ideal gas evolving in local thermal equilibrium are determined. Five classes of thermodynamic schemes are admissible, which give rise to five classes of regular models and three classes of singular models. No Stephani universes exist representing an exact solution to a classical ideal gas (one for which the internal energy is proportional to the temperature). But some Stephani universes may approximate a classical ideal gas at first order in the temperature: all of them are obtained. Finally, some features about the physical behavior of the models are pointed out.
- Publication
General Relativity & Gravitation, 2005, Vol 37, Issue 3, p557
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-005-0042-y