Dynamics of quiet universes

Hiraku Mutoh, Toshinari Hirai, Kei ichi Maeda

研究成果: Article査読

8 被引用数 (Scopus)

抄録

We study the stability of a contracting silent universe, which is a spacetime with irrotational dust and vanishing magnetic part of the Weyl tensor, [Formula presented]. Two general relativistic backgrounds are analyzed: one is an attractor of silent universes, i.e., a locally Kasner spacetime, and the other is a particular class of inhomogeneous Szekeres solutions. In both cases their stabilities against perturbations with a nonzero magnetic part depend on a contraction configuration; a spindlelike collapse is unstable, while a pancakelike collapse is still stable. We also find that a similar instability exists in spindle collapse for a Newtonian case. We conclude that [Formula presented] is not a generic ansatz even in general relativistic dust collapse.

本文言語English
ページ(範囲)3276-3287
ページ数12
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
55
6
DOI
出版ステータスPublished - 1997
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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