The Simplest Exact Solutions in the LTB Model

Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology

Scientific paper

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LaTeX,10 pages,Invited talk at the Cosmion'96 Int. Conf. 1996; submitted to Gravitation and Astrophysics

Scientific paper

The rules of calculating three undetermined functions which defined a solution in the LTB model are used to study the class of exact nonhomogene\-ous models with $f^2(\mu) = 1$, $\Lambda = 0$. The parameter $\nu(\mu)$ defined the difference between LTB and FRW models is found out and the limit transformation to the FRW model is shown. The initial conditions are present throught density and Habble function at the moment of time $\tau = 0$. Two criteria of homogeneous of matter distribution are studied. The asimptotic of the present solution for $\tau \rightarrow +\infty$ is studied.

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