Temperature Evolution Law of Imperfect Relativistic Fluids

Details Temperature Evolution Law of Imperfect Relativistic Fluids Temperature Evolution Law of Imperfect Relativistic Fluids

2002-01-14

arxiv.org/abs/gr-qc/0201048v1

Gen.Rel.Grav.34:865-875,2002

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, no figure, revtex

Scientific paper

10.1023/A:1016317914912

The first-order general relativistic theory of a generic dissipative (heat-conducting, viscous, particle-creating) fluid is rediscussed from a unified covariant frame-independent point of view. By generalizing some previous works in the literature, we derive a formula for the temperature variation rate, which is valid both in Eckart's (particle) and in the Landau-Lifshitz (energy) frames. Particular attention is paid to the case of gravitational particle creation and its possible cross-effect with the bulk viscosity mechanism.

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