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What determines the physical quantities of galaxies? A two-component gas model for protogalaxies with energy input from supernovae
https://ir.soken.ac.jp/records/3498
https://ir.soken.ac.jp/records/349820e19d27-a631-408e-a2f9-cba4f4aa2995
| 名前 / ファイル | ライセンス | アクション |
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nph-iarticle_query375 (91.6 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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| 公開日 | 2013-04-23 | |||||||||
| タイトル | ||||||||||
| タイトル | What determines the physical quantities of galaxies? A two-component gas model for protogalaxies with energy input from supernovae | |||||||||
| タイトル | ||||||||||
| タイトル | What determines the physical quantities of galaxies? A two-component gas model for protogalaxies with energy input from supernovae | |||||||||
| 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 | |||||||||
| 著者 |
IKEUCHI , Satoru
× IKEUCHI , Satoru
× NORMAN, Colin A.
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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 equilibrium structure of a protogalaxy, which is assumed to be composed of cold clouds and hot ambient gas in pressure equilibrium, is examined. The underlying characteristic time scales are the free-fall time of the system and the cooling time of the hot ambient gas. The global collapse condition used here is the well-known condition that the cooling time must be less than the free-fall time. Feedback processes are incorporated into the model via an energy balance condition between the power injected from supernovae and related processes due to the evolution of newly formed massive stars and the luminosity radiated by cooling processes. These considerations allow calculation of the characteristic mass and size of these two-component protogalaxies that can be expressed in terms of fundamental constants with some additional reasonably well constrained parameters. In addition, the pressure-equilibrium condition for protogalaxies with such a two-component interstellar medium indicates a characteristic mass for clouds, which is roughly comparable to the mass scale of globular clusters depending on the relevant cooling mechanism. The physical properties derived here for these protogalactic systems could be useful in interpreting high-redshift objects that may be possibly associated with galaxy formation. | |||||||||
| 書誌情報 |
Astrophysical Journal, Part 1 en : Astrophysical Journal, Part 1 巻 375, 号 2, p. 479-483, 発行日 1991-06 |
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| 出版者 | ||||||||||
| 出版者 | The American Astronomical Society | |||||||||
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| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0004-637X | |||||||||
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| 関連タイプ | isIdenticalTo | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | http://doi.org/10.1086/170209 | |||||||||
| 関連名称 | 10.1086/170209 | |||||||||
| 権利 | ||||||||||
| 権利情報 | © 1991. The American Astronomical Society | |||||||||
| 関連サイト | ||||||||||
| 識別子タイプ | URI | |||||||||
| 関連識別子 | http://aas.org/publications/aas-copyright-policy | |||||||||
| 関連名称 | Copyright | |||||||||
| フォーマット | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | application/pdf | |||||||||
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| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
