Accelerating Flat Universe and Analytic Study of the m-z Relation

Details Accelerating Flat Universe and Analytic Study of the m-z Relation Accelerating Flat Universe and Analytic Study of the m-z Relation

2002-09-14

arxiv.org/abs/astro-ph/0209282v1

Gen.Rel.Grav. 35 (2003) 121-127

Astronomy and Astrophysics

Astrophysics

7 pages

Scientific paper

An accelerating flat universe with a variable cosmological term is obtained in the Robertson-Walker metric. The variable cosmological term is defined by the correction terms of the metric tensor field. Simple solutions of the scale factor and the cosmological term are shown. In this model of the universe, the magnitude-redshift relation is analytically studied to see if the model reproduces the tendency of the present observational data. The equation of state parameter $\gamma$ is touched.

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