Item type |
itemtype_ver1(1) |
公開日 |
2022-12-01 |
タイトル |
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タイトル |
Evidence for a cloud–cloud collision in Sh2-233 triggering the formation of the high-mass protostar object IRAS 05358+3543 |
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言語 |
en |
著者 |
Yamada, Rin I
Fukui, Yasuo
Sano, Hidetoshi
Tachihara, Kengo
Bieging, John H
Enokiya, Rei
Nishimura, Atsushi
Fujita, Shinij
Kohno, Mikito
Tsuge, Kisetsu
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利 |
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言語 |
en |
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権利情報 |
This article has been accepted for publication in [Monthly Notices of the Royal Astronomical Society] ©: [2022] [authors] Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
キーワード |
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主題Scheme |
Other |
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主題 |
stars: formation |
キーワード |
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主題Scheme |
Other |
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主題 |
ISM: clouds |
キーワード |
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主題Scheme |
Other |
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主題 |
ISM: individual objects: IRAS 05358+3543 |
内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
We have carried out a new kinematical analysis of the molecular gas in the Sh2-233 region by using the CO J = 2–1 data taken at ∼0.5 pc resolution. The molecular gas consists of a filamentary cloud of 5-pc length with 1.5-pc width where two dense cloud cores are embedded. The filament lies between two clouds, which have a velocity difference of 2.7 km s−1 and are extended over ∼5 pc. We frame a scenario that the two clouds are colliding with each other and compressed the gas between them to form the filament in ∼0.5 Myr which is perpendicular to the collision. It is likely that the collision formed not only the filamentary cloud but also the two dense cores. One of the dense cores is associated with the high-mass protostellar candidate IRAS 05358+3543, a representative high-mass protostar. In the monolithic collapse scheme of high mass star formation, a compact dense core of 100 M⊙ within a volume of 0.1 pc radius is assumed as the initial condition, whereas the formation of such a core remained unexplained in the previous works. We argue that the proposed collision is a step which efficiently collects the gas of 100 M⊙ into 0.1 pc radius. This lends support for that the cloud–cloud collision is an essential process in forming the compact high-mass dense core, IRAS 05358+3543. |
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言語 |
en |
出版者 |
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出版者 |
Oxford University Press |
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言語 |
en |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
関連情報 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1093/mnras/stac1087 |
収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0035-8711 |
書誌情報 |
en : Monthly Notices of the Royal Astronomical Society
巻 515,
号 1,
p. 1012-1025,
発行日 2022-09
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ファイル公開日 |
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日付 |
2022-12-01 |
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日付タイプ |
Available |