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Candidates of Hα Emitting Regions in the Magellanic Stream IV Cloud
https://hiroshima.repo.nii.ac.jp/records/2006348
https://hiroshima.repo.nii.ac.jp/records/2006348c6561493-6537-442d-9a5f-6c9bfcbf7a1d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AstrophysJLet_749_L2.pdf (835.6 KB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-18 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Candidates of Hα Emitting Regions in the Magellanic Stream IV Cloud | |||||||||||
| 言語 | en | |||||||||||
| 作成者 |
Yagi, Masafumi
× Yagi, Masafumi
× Komiyama, Yutaka
× Yoshida, Michitoshi
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| アクセス権 | ||||||||||||
| アクセス権 | open access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
| 権利情報 | ||||||||||||
| 権利情報 | (c) 2012. The American Astronomical Society. All rights reserved. | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | galaxies: individual (Magellanic Stream) | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Galaxy: halo | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | intergalactic medium | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | NDC | |||||||||||
| 主題 | 440 | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述 | From H alpha narrowband observations, we identified three H alpha emitting regions in the direction of Magellanic Stream IV (MS IV). They consist of three parallel filaments of 2 arcmin width and 6-30 arcmin length at 12 arcmin intervals. Their mean surface brightness (SB) is similar to 2 x 10(-18) erg s(-1) cm(-2) arcsec(-2). Because of their low SB, the regions were not detected in previous Ha surveys. In the HI map, the position of the filaments overlap MS, suggesting that they are parts of the MS, but there also exists a local HI structure. If the filaments are associated with the MS, the sizes are 30 pc x 100-500 pc. The filaments lie at the leading edge of a downstream cloud, which supports shock heating and its propagation (shock cascade) model for the ionizing source. If they are local objects, on the other hand, Fossil Stromgren Trails of more than two stars is a possible interpretation, and the sizes would be 0.1 pc x 0.3-1.5 pc at 180 pc distance. The positional information of the H alpha filaments presented in this Letter enables future spectroscopic observations to clarify their nature. | |||||||||||
| 言語 | en | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | IOP Publishing Ltd | |||||||||||
| 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 | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1088/2041-8205/749/1/L2 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | http://dx.doi.org/10.1088/2041-8205/749/1/L2 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 2041-8205 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AA00553264 | |||||||||||
| 開始ページ | ||||||||||||
| 開始ページ | L2 | |||||||||||
| 書誌情報 |
Astrophysical Journal Letters Astrophysical Journal Letters 巻 749, 号 1, p. L2, 発行日 2012 |
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| 旧ID | 34750 | |||||||||||
