The Behavior of cosmological models with varying G
Jul, 199657 pages
Published in:
- Phys.Rev.D 55 (1997) 1906-1936
e-Print:
- gr-qc/9607072 [gr-qc]
Report number:
- SUSSEX-AST-96-7-5
Citations per year
Abstract: (arXiv)
We provide a detailed analysis of Friedmann-Robertson-Walker universes in a wide range of scalar-tensor theories of gravity. We apply solution-generating methods to three parametrised classes of scalar-tensor theory which lead naturally to general relativity in the weak-field limit. We restrict the parameters which specify these theories by the requirements imposed by the weak-field tests of gravitation theories in the solar system and by the requirement that viable cosmological solutions be obtained. We construct a range of exact solutions for open, closed, and flat isotropic universes containing matter with equation of state and in vacuum. We study the range of early and late-time behaviours displayed, examine when there is a `bounce' at early times, and expansion maxima in closed models.Note:
- 58 pages LaTeX, 6 postscript figures, uses epsf Report-no: SUSSEX-AST 96/7-5
- 12.10.-g
- 04.50.+h
- 98.80.Hw
- Friedman model
- space-time: Robertson-Walker
- gravitation: scalar
- gravitation: tensor
- field equations: solution
- model: fluid
- approximation: weak field
References(71)
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