Cosmological Constraints on Isocurvature and Tensor Perturbations(Astrophysics and Cosmology)
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概要
- 論文の詳細を見る
We investigate cosmological constraints on primordial isocurvature and tensor perturbations, using recent observations of the cosmic microwave background and the large scale structure. We find that present observations are consistent with purely adiabatic initial conditions for the structure formation under any priors on correlations of isocurvature modes, and upper limits on the contribution of isocurvature and tensor perturbations are presented. We also apply the obtained constraints to some specific theoretical models, axion isocurvature perturbation models and curvaton models, and give some implications for theoretical models.
- 理論物理学刊行会の論文
- 2008-11-25
著者
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KAWASAKI Masahiro
Institute for Cosmic Ray Research, University of Tokyo
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Kawasaki Masahiro
Univ. Tokyo Kashiwa Jpn
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SEKIGUCHI Toyokazu
Institute for Cosmic Ray Research, University of Tokyo
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Sekiguchi Toyokazu
Institute For Cosmic Ray Research
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Sekiguchi Toyokazu
Institute For Cosmic Ray Research University Of Tokyo
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Kawasaki Masahiro
Institute For Cosmic Ray Research University Of Tokyo:institute For The Physics And Mathematics Of T
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Kawasaki Masahiro
Institute For Cosmic Ray Research University Of Tokyo
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Kawasaki Masahiro
Institute For Cosmic Ray Research The University Of Tokyo
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KAWASAKI Masahiro
Institute for Cosmic Ray Research, The University of Tokyo
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KAWASAKI Masahiro
Institute for Cosmic Ray Research, University of Tokyo:Institute for the Physics and Mathematics of the Universe, University of Tokyo
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