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Nonlinear Growth of Density Contrast and Formation of Galaxies in a Neutrino-Dominated Universe
https://ir.soken.ac.jp/records/4251
https://ir.soken.ac.jp/records/4251eef31539-b25a-4348-95f0-a2cf2324f90c
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-02-18 | |||||
| タイトル | ||||||
| タイトル | Nonlinear Growth of Density Contrast and Formation of Galaxies in a Neutrino-Dominated Universe | |||||
| タイトル | ||||||
| タイトル | Nonlinear Growth of Density Contrast and Formation of Galaxies in a Neutrino-Dominated Universe | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
IKEUCHI, Satoru
× IKEUCHI, Satoru× UMEMURA, Masayuki |
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| 著者別名 |
池内, 了
× 池内, 了 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The growth of density contrasts of collisionless particles and nucleonic matter is pursued from the decoupling era up to the present in the Newtonian mechanics. The negative density perturbation of collisionles particles grows quickly to the void and surrounding ridge. Meanwhile, the shell-crossing occurs. The nucleonic matter, which is set uniformly at the decoupling epoch, is enforced to concentrate into the ridge by the gravitational force at this shell-crossing epoch. At the same time, the temperature of nucleonic matter increases rapidly due to the dissipation of kinetic energy by the pressure force. The dependence of results upon the amplitude of the initial density perturbation is made clear. If the galaxies were formed after the shell-crossing, the initial amplitude of density perturbation of collisionless particles must be higher than 0.03 in the Einstein-de Sitter universe. Through the analysis of gravitational instability of ridges, a possible scenario for the formation of the large-scale structure of the universe within the adiabatic theory is presented. | |||||
| 書誌情報 |
Progress of Theoretical Physics en : Progress of Theoretical Physics 巻 72, 号 2, p. 216-232, 発行日 1984 |
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| 出版者 | ||||||
| 出版者 | Oxford University Press | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0033-068X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1143/PTP.72.216 | |||||
| 関連名称 | 10.1143/PTP.72.216 | |||||
| 権利 | ||||||
| 権利情報 | © 2014 The Physical Society of Japan | |||||
