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Hydrodynamical Winds from an Accretion Disk
https://osaka-kyoiku.repo.nii.ac.jp/records/2063962
https://osaka-kyoiku.repo.nii.ac.jp/records/2063962a0b5def1-fe1e-4b5a-ba49-0e7d8f456e36
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Pub_Ast_Soc_42_p249.pdf
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2007-11-16 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Hydrodynamical Winds from an Accretion Disk | |||||||||||||
| 言語 | en | |||||||||||||
| 著者 |
FUKUE, Jun
× FUKUE, Jun
× OKADA, Rika
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| ISSN | ||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 00046264 | |||||||||||||
| 書誌レコードID | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AA00795296 | |||||||||||||
| 書誌情報 |
ja : Publications of the Astronomical Society of Japan 巻 42, p. 249-267, 発行日 1990 |
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| 出版者 | ||||||||||||||
| 出版者 | Astronomical Society of Japan | |||||||||||||
| 言語 | ja | |||||||||||||
| キーワード | ||||||||||||||
| 主題 | Accretion disks, Astrophysical jets, Critical points, Winds | |||||||||||||
| 内容記述 | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | It is expected that hot gas emanates hydrodynamically from the surface of an accretion disk in the gravitational field of a central object through internal heating or irradiation. We examine such disk winds under a simple approximation in which the force balances parallel and perpendicular to the streamlines are decoupled. The angular momentum is assumed to be conserved along each streamline. The energy is injected into each streamline at the flow base on the surface of the disk. Under these approximations, we reveal the properties of a two-dimensional flow pattern, such as the transonic surfaces, of disk winds. When the temperature distribution at the wind base is not so steep (flatter than 1/r_e, r_e being the equatorial distance), the gas of the inner disk is gravitationally bound near the disk to form a corona, while the gas on the outer disk is unbound to escape infinity, passing through the critical points. On the other hand, if the temperature distribution is steeper than 1/r_e, the gas on the inner disk is unbound and that on the outer disk is bound. When it is 1/r_e, the gas is free or bound all over the disk surface. Although the transonic nature, such as the location or number of the critical points, depends naively on the configuration of streamlines, the global behavior is independent of the streamlines and shows the characteristic properties of hydrodynamical winds from the disk. | |||||||||||||
| 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 | |||||||||||||
| TD番号 | ||||||||||||||
| TD00000710 | ||||||||||||||
