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- Title
The Asymptotic Regimes of Tilted Bianchi II Cosmologies.
- Authors
Hewitt, C.; Bridson, R.; Wainwright, J.
- Abstract
In this paper we give, for the first time, a complete description of the dynamics of tilted spatially homogeneous cosmologies of Bianchi type II. The source is assumed to be a perfect fluid with equation of state p = (γ − 1)μ, where γ) is a constant. We show that unless the perfect fluid is stiff, the tilt destabilizes the Kasner solutions, leading to a Mixmaster-like initial singularity, with the tilt being dynamically significant. At late times the tilt becomes dynamically negligible unless the equation of state parameter satisfies γ > $$\gamma\; > \;\tfrac {10} {7}$$ . We also find that the tilt does not destabilize the flat FL model, with the result that the presence of tilt increases the likelihood of intermediate isotropization.
- Publication
General Relativity & Gravitation, 2001, Vol 33, Issue 1, p65
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1023/A:1002075902953