2002/10/25 by A. Sandoval-Villalbazo, Sandoval-Villalbazo, A., L. S. Garcı́a-Colı́n +2
Earth and Planetary Sciences · Physics and Astronomy · #Cosmology and Gravitation Theories #Geophysics and Gravity Measurements #Solar and Space Plasma Dynamics #gr-qc
paper · pdf · doi:10.48550/arxiv.gr-qc/0210089
9 pages, submitted to CQG
arxiv created 2002/10/25 · arxiv updated 2009/11/30
Einstein's field equations in FRW space-times are coupled to the BGK equation in order to derive the stress energy tensor including dissipative effects up to second order in the thermodynamical forces. The space-time is assumed to be matter-dominated, but in a low density regime for which a second order (Burnett) coefficient becomes relevant. Cosmological implications of the solutions, as well as the physical meaning of transport coefficients in an isotropic homogeneous universe are discussed.