Early growth of cosmological inhomogeneity at the horizon scale

Physical Review D 50 巻 10 号 6110-6114 頁 1994-11-15 発行
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タイトル ( eng )
Early growth of cosmological inhomogeneity at the horizon scale
作成者
収録物名
Physical Review D
50
10
開始ページ 6110
終了ページ 6114
抄録
The weakly nonlinear evolution of collisionless matter in the expanding Universe is examined within general relativity. An approximate solution, whose perturbation scale is comparable to or larger than the Hubble radius, is obtained by series expansion with respect to the background scale factor. The solution represents that the early density contrast is controlled by the initial data at each Lagrangian position and the subsequent growth is modified by the presence of the magnetic part of the Weyl curvature, which is produced by the nonlinear coupling, even if it vanishes in the initial condition. The effect of the gravitomagnetic part on the dynamics is demonstrated in a concrete example. The dynamical role becomes less important as the perturbation scale increases beyond the horizon scale.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 1994-11-15
権利情報
Copyright (c) 1994 The American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.50.6110
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.50.6110