Super-Weakly Interacting Particles and the Formation of Galaxies and Clusters of Galaxies
スポンサーリンク
概要
- 論文の詳細を見る
We investigate whether adiabatic perturbations of massive neutrinos grow enough, during the matter-dominated era before and after decoupling, to explain the formation of clusters of galaxies, using the upper bounds on the small scale temperature fluctuations of the cosmic background radiation. The results are negative and similar constraints are derived for other super-weakly interacting particles. If we assume that the initial perturbations scale as δ〜M^<-1/2-n/6>, then no objects form before z=3.78 for n=1, constant curvature fluctuations, whatever super-weakly interacting particle is introduced.
- 理論物理学刊行会の論文
- 1983-12-25
著者
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HARA Tetsuya
Department of Anesthesiology, Nagasaki University School of Medicine
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Hariu T.
Yamagata University
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Hara Tetsuya
Research Institute For Fundamental Physics Kyoto University
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HARA Takashi
Institute of Physics, College of Arts and Sciences University of Tokyo
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Hara Tetsuya
Department Of Anesthesiology Nagasaki Rosai Hospital
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HARA Takashi
Institute of Physics, College of Arts and Science University of Tokyo : Courant Institute of Mathematical Sciences, New York University
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HARA Tetsuya
Department of Physics, Kyoto University
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Hara Tetsuya
Research Center for Nuclear Physics, Osaka. University
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