Analytic solutions for the $\Lambda$-FRW Model

Abstract

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).

17 pages, 2 figures; published version

References in corpus (7)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
• A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
• Introduction to Cosmology
• Oscillating Friedman Cosmology

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