Analytic solutions for the $Λ$-FRW Model

Details Analytic solutions for the $Λ$-FRW Model Analytic solutions for the $Λ$-FRW Model

2005-08-17

arxiv.org/abs/gr-qc/0508073v4

Found.Phys.36:1736-1752,2006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages, 2 figures; published version

Scientific paper

10.1007/s10701-006-9076-6

The high precision attained by cosmological data in the last few years has increased the interest in exact solutions. Analytic expressions for solutions in the Standard Model are presented here for all combinations of $\Lambda = 0$, $\Lambda \ne 0$, $\kappa = 0$ and $\kappa \ne 0$, in the presence and absence of radiation and nonrelativistic matter. The most complete case (here called the $\Lambda \gamma CDM$ Model) has $\Lambda \ne 0, \kappa \ne 0$, and supposes the presence of radiation and dust. It exhibits clearly the recent onset of acceleration. The treatment includes particular models of interest such as the $\Lambda$CDM Model (which includes the cosmological constant plus cold dark matter as source constituents).

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