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A BICONICALLY EXPANDING FLOW IN W43A TRACED BY SiO MASER EMISSION
http://hdl.handle.net/10232/26179
http://hdl.handle.net/10232/26179ba92e9cc-b0f9-4cf9-be5a-b366b8b0ab00
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-03-15 | |||||
タイトル | ||||||
タイトル | A BICONICALLY EXPANDING FLOW IN W43A TRACED BY SiO MASER EMISSION | |||||
著者 |
IMAI, Hiroshi
× IMAI, Hiroshi× NAKASHIMA, Jun-ichi× DIAMOND, Philip J.× MIYAZAKI, Atsushi× DEGUCHI, Shuji |
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別言語の著者 | ||||||
姓名 | 今井, 裕 | |||||
別言語の著者 | ||||||
姓名 | 中島, 淳一 | |||||
別言語の著者 | ||||||
姓名 | 宮崎, 敦史 | |||||
別言語の著者 | ||||||
姓名 | 出口, 修至 | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | masers -- stars | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | mass loss -- stars | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | individual (W43A) -- stars | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | winds, outflows | |||||
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 | |||||
要約(Abstract) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We report Very Long Baseline Array and Very Large Array observations of 22 GHz H2O and 43 GHz SiO (v = 1, J = 1-0) maser emission as well as 7 mm continuum emission in W43A, which exhibits a highly collimated jet of molecular gas and a spherically expanding envelope very similar to that of an OH/IR star. The spatiokinematical structure of the H2O masers is well fitted to a precessing jet model with an expansion velocity of 150 km s^-1 and a dynamical age of ~50 yr. The spatiokinematical structure of the SiO masers is well fitted to a biconically expanding flow model, whose axis is parallel to the direction of the collimated jet. Astrometry of the H2O and SiO masers suggests that these maser sources have a common dynamical center, possibly as part of a binary system, within 70 AU. The SiO masers may be excited on the surface of the cone that has significant deceleration and interacts with the jet. A 7 mm continuum emission source is located ∼1300 AU away from these maser sources at a position angle of about -60° from the jet axis. The physical relation of the continuum to the maser sources is still unclear. | |||||
収録雑誌名 |
The Astronomical Journal 巻 622, 号 2, p. L125-L128, 発行日 2005 |
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作成日 | ||||||
日付 | 2005-04-01 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
ISSN | 0004-6256 | |||||
NII書誌ID(雑誌) | ||||||
収録物識別子タイプ | NCID | |||||
NC ID | AA00552749 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
DOI | info:doi/10.1086/429820 | |||||
権利 | ||||||
権利情報 | American Astronomical Society | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NDC | ||||||
主題Scheme | NDC | |||||
主題 | 440 | |||||
公開者・出版者 | ||||||
出版者 | American Astronomical Society | |||||
公開者・出版者 | ||||||
出版者 | IOP Publishing |