B-fields in Star-forming Region Observations (BISTRO): Magnetic Fields in the Filamentary Structures of Serpens Main
文献类型：期刊论文
| 作者 | Kwon, Woojin89,90; Pattle, Kate87,88; Sadavoy, Sarah86; Hull, Charles L. H.84,85; Johnstone, Doug82,83; Ward-Thompson, Derek81; Di Francesco, James82,83; Koch, Patrick M.80; Furuya, Ray78,79; Doi, Yasuo77 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 926期号:2页码:13 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ac4bbe |
| 通讯作者 | Kwon, Woojin(wkwon@snu.ac.kr) |
| 英文摘要 | We present 850 mu m polarimetric observations toward the Serpens Main molecular cloud obtained using the POL-2 polarimeter on the James Clerk Maxwell Telescope as part of the B-fields In STar-forming Region Observations survey. These observations probe the magnetic field morphology of the Serpens Main molecular cloud on about 6000 au scales, which consists of cores and six filaments with different physical properties such as density and star formation activity. Using the histogram of relative orientation (HRO) technique, we find that magnetic fields are parallel to filaments in less-dense filamentary structures where NH2 < 0.93 x 10(22) cm(-2) (magnetic fields perpendicular to density gradients), while they are perpendicular to filaments (magnetic fields parallel to density gradients) in dense filamentary structures with star formation activity. Moreover, applying the HRO technique to denser core regions, we find that magnetic field orientations change to become perpendicular to density gradients again at NH2 approximate to 4.6 x 10(22) NH2 approximate to 16 x 10(22) cm(-2), magnetic fields change back to being parallel to density gradients once again, which can be understood to be due to magnetic fields being dragged in by infalling material. In addition, we estimate the magnetic field strengths of the filaments (B-POS = 60-300 mu G)) using the Davis-Chandrasekhar-Fermi method and discuss whether the filaments are gravitationally unstable based on magnetic field and turbulence energy densities. |
| WOS关键词 | IMAGING POLARIMETRY ; INTERSTELLAR CLOUDS ; SCUBA-2 ; POLARIZATION ; SPITZER ; LEGACY ; ORION ; 1ST ; STRENGTHS ; ALIGNMENT |
| 资助项目 | National Key R&D Program of China[2017YFA0402700] ; National Key R&D Program of China[2017YFA0402600] ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; New Faculty Startup Fund from Seoul National University ; National Research Foundation of Korea (NRF) - Korean government (MSIT)[NRF-2021R1F1A1061794] ; NRC Canada ; NSERC ; NAOJ Fellowship ; JSPS KAKENHI[18K13586] ; JSPS KAKENHI[20K14527] ; JSPS KAKENHI[18H05442] ; JSPS KAKENHI[15H02063] ; JSPS KAKENHI[22000005] ; National Natural Science Foundation of China (NSFC) grant[U1731237] ; Basic Science Research Program through the NRF - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Govt. of India[RJF/2020/000071] ; Ministry of Science and Technology of Taiwan[AS-IA-106-M03] ; Ministry of Science and Technology of Taiwan[106-2119-M-007-021-MY3] ; Ministry of Science and Technology of Taiwan[109-2112-M-007-010-MY3] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education[NRF-2020R1A6A3A01100208] ; National Research Foundation of Korea (NRF) grant - Korean government (MSIT) through the Mid-career Research Program[2019R1A2C1087045] ; [M16AL004] ; [URF\R1\211322] ; [MOST 108-2112-M-001-004-MY2] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000759830000001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; New Faculty Startup Fund from Seoul National University ; National Research Foundation of Korea (NRF) - Korean government (MSIT) ; NRC Canada ; NSERC ; NAOJ Fellowship ; JSPS KAKENHI ; National Natural Science Foundation of China (NSFC) grant ; Basic Science Research Program through the NRF - Ministry of Education, Science and Technology ; Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Govt. of India ; Ministry of Science and Technology of Taiwan ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; National Research Foundation of Korea (NRF) grant - Korean government (MSIT) through the Mid-career Research Program |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4507]  |
| 专题 | 恒星形成与演化研究团组 |
| 通讯作者 | Kwon, Woojin |
| 作者单位 | 1.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, Wales 2.Univ Leeds, Sch Phys & Astron, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England 3.Univ Grenoble Alpes, IPAG, CNRS, F-38000 Grenoble, France 4.Univ Leeds, Dept Appl Math, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England 5.Univ South Wales, Pontypridd CF37 1DL, M Glam, Wales 6.Jet Prop Lab, M-S 169-506,4800 Oak Grove Dr, Pasadena, CA 91109 USA 7.Univ Paris Diderot, Lab AIM CEA, IRFU, CEA Saclay,Serv Astrophys,DSM CNRS, F-91191 Gif Sur Yvette, France 8.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 9.UCL, Phys & Astron Dept, London WC1E 6BT, England 10.Univ Sci & Technol Hanoi, Vietnam Acad Sci & Technol, 18 Hoang Quoc Viet, Hanoi, Vietnam |
| 推荐引用方式 GB/T 7714 | Kwon, Woojin,Pattle, Kate,Sadavoy, Sarah,et al. B-fields in Star-forming Region Observations (BISTRO): Magnetic Fields in the Filamentary Structures of Serpens Main[J]. ASTROPHYSICAL JOURNAL,2022,926(2):13. |
| APA | Kwon, Woojin.,Pattle, Kate.,Sadavoy, Sarah.,Hull, Charles L. H..,Johnstone, Doug.,...&van Loo, Sven.(2022).B-fields in Star-forming Region Observations (BISTRO): Magnetic Fields in the Filamentary Structures of Serpens Main.ASTROPHYSICAL JOURNAL,926(2),13. |
| MLA | Kwon, Woojin,et al."B-fields in Star-forming Region Observations (BISTRO): Magnetic Fields in the Filamentary Structures of Serpens Main".ASTROPHYSICAL JOURNAL 926.2(2022):13. |
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