Gauge-Invariant Perturbations in the Process of Isotropization of an Anisotropic Universe : Astrophysics and Relativity
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概要
- 論文の詳細を見る
The cosmological perturbations are studied in a gauge-invariant way in an anisotropic universe with a perfect fluid. The background anisotropic universe under consideration is isotropized as the universe expands. We investigate the behavior of the perturbations through the anisotropic stage and the nearly isotropic stage by numerical calculations and find that the tensor perturbations remain as large as the scalar perturbations in the isotropic stage. We estimate the energy density of the gravitational wave and quadrupole component of anisotropies of the cosmic background radiation from this result.
- 理論物理学刊行会の論文
- 1988-05-25
著者
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DEN Mitsue
Department of Physics, College of Liberal Arts and Science Kyoto University
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Den Mitsue
Space Simulation Group, National Institute of Information and Communications Technology
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Den Mitsue
Research Institute For Theretical Physics Hiroshima University
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Den Mitsue
Department Of Physics College Of Liberal Arts And Science Kyoto University
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Den Mitsue
Department Of Physics Kyoto University:(present Address)department Of Physics College Of Liberal Art
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DEN Mitsue
Department of Physics, Kyoto University
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