| Item type |
文献 / Documents(1) |
| 公開日 |
2023-02-10 |
| アクセス権 |
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|
アクセス権 |
open access |
| 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 |
| 出版社版DOI |
|
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1093/mnras/stac1356 |
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|
言語 |
ja |
|
|
関連名称 |
10.1093/mnras/stac1356 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
|
|
タイトル |
Magnetic fields and outflows in the large Bok globule CB 54 |
|
言語 |
en |
| タイトル別表記 |
|
|
その他のタイトル |
Magnetic fields and outflows in CB 54 |
|
言語 |
en |
| 著者 |
Pattle, Kate
Lai, Shih-Ping
Sadavoy, Sarah
Coudé, Simon
Wolf, Sebastian
古屋, 玲 S.
Kwon, Woojin
Lee, Chang Won
Zielinski, Niko
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
We have observed the large Bok globule CB 54 in 850-μm polarized light using the POL-2 polarimeter on the James Clerk Maxwell Telescope (JCMT). We find that the magnetic field in the periphery of the globule shows a significant, ordered deviation from the mean-field direction in the globule centre. This deviation appears to correspond with the extended but relatively weak 12CO outflow emanating from the Class 0 sources at the centre of the globule. Energetics analysis suggests that if the outflow is reshaping the magnetic field in the globule’s periphery, then we can place an upper limit of <27μG on the magnetic field strength in the globule’s periphery. Comparison with archival Planck and CARMA measurements shows that the field in the centre of the globule is consistent over several orders of magnitude in size scale, and oriented parallel to the density structure in the region in projection. We thus hypothesize that while non-thermal motions in the region may be sub-Alfvénic, the magnetic field is subdominant to gravity over a wide range of size scales. Our results suggest that even a relatively weak outflow may be able to significantly reshape magnetic fields in star-forming regions on scales >0.1 pc. |
|
言語 |
en |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
stars |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
formation –ISM |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
individual objects |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
CB 54 –ISM |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
magnetic fields –submillimetre |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
ISM |
| 書誌情報 |
en : Monthly Notices of the Royal Astronomical Society
巻 515,
号 1,
p. 1026-1036,
発行日 2022-06-23
|
| 収録物ID |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13652966 |
| 出版者 |
|
|
出版者 |
Oxford University Press |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
The Royal Astronomical Society |
|
言語 |
en |
| 権利情報 |
|
|
言語 |
en |
|
権利情報 |
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
| EID |
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|
識別子 |
386161 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
eng |
mnras_515_1_1026.pdf (1.63 MB)
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