Towards a Physical Interpretation for the Stephani Universes
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摘要: A physically reasonable interpretation is provided for the perfect fluid, spherically symmetric, conformally flat "Stephani Universes". The free parameters of this class exact solutions are determined so that ideal gas relation p = nkBT identically fulfilled, while full equation state a classical monatomic and matter-radiation mixture holds up to good approximation in near dust, matter dominated regime. Only models having spacelike slices with positive curvature admit regular evolution domain avoids an unphysical singularity. In regime these dynamically observationally indistinguishable from "standard" FLRW cosmology dust source.
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