The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry

doi:10.3847/2041-8213/abeb1c

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	The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry
	Chakali, Eswaraiah 87; Li, Di 85,86,87; Furuya, Ray S.84; Hasegawa, Tetsuo 83; Ward-Thompson, Derek 82; Qiu, Keping 80,81; Ohashi, Nagayoshi 79; Pattle, Kate 78; Sadavoy, Sarah 77; Hull, Charles L. H.75,76
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2021-05-01
卷号	912 期号:2 页码:15
ISSN号	2041-8205
DOI	10.3847/2041-8213/abeb1c
通讯作者	Chakali, Eswaraiah(eswaraiahc@nao.cas.cn)
英文摘要	We have obtained sensitive dust continuum polarization observations at 850 mu m in the B213 region of Taurus using POL-2 on SCUBA-2 at the James Clerk Maxwell Telescope as part of the B-fields in STar-forming Region Observations (BISTRO) survey. These observations allow us to probe magnetic field (B-field) at high spatial resolution (similar to 2000 au or similar to 0.01 pc at 140 pc) in two protostellar cores (K04166 and K04169) and one prestellar core (Miz-8b) that lie within the B213 filament. Using the Davis-Chandrasekhar-Fermi method, we estimate the B-field strengths in K04166, K04169, and Miz-8b to be 38 +/- 14, 44 +/- 16, and 12 +/- 5 mu G, respectively. These cores show distinct mean B-field orientations. The B-field in K04166 is well ordered and aligned parallel to the orientations of the core minor axis, outflows, core rotation axis, and large-scale uniform B-field, in accordance with magnetically regulated star formation via ambipolar diffusion taking place in K04166. The B-field in K04169 is found to be ordered but oriented nearly perpendicular to the core minor axis and large-scale B-field and not well correlated with other axes. In contrast, Miz-8b exhibits a disordered B-field that shows no preferred alignment with the core minor axis or large-scale field. We found that only one core, K04166, retains a memory of the large-scale uniform B-field. The other two cores, K04169 and Miz-8b, are decoupled from the large-scale field. Such a complex B-field configuration could be caused by gas inflow onto the filament, even in the presence of a substantial magnetic flux.
资助项目	National Natural Science Foundation of China (NSFC)[11988101] ; National Natural Science Foundation of China (NSFC)[11725313] ; National Natural Science Foundation of China (NSFC)[U1931117] ; National Natural Science Foundation of China (NSFC)[U1731237] ; International Partnership Program of Chinese Academy of Sciences[114A11KYSB20160008] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; Ministry of Science and Technology (MOST) in Taiwan[MOST 109-2112-M-001-051] ; NAOJ Fellowship ; JSPS KAKENHI[18K13586] ; JSPS KAKENHI[20K14527] ; New Faculty Startup Fund from Seoul National University ; National Research Council of Canada ; NSF[1715876] ; center for Women In Science, Engineering and Technology (WISET) - Ministry of Science and ICT (MSIT)[WISET-2019-288] ; center for Women In Science, Engineering and Technology (WISET) - Ministry of Science and ICT (MSIT)[WISET-2020-247] ; Vietnam National Foundation for Science and Technology Development (NAFOSTED)[103.99-2019.368] ; [MOST 108-2112-M-001-004-MY2]
WOS关键词	AXISYMMETRICAL CLOUD CORES ; STAR-FORMATION ; MOLECULAR CLOUD ; AMBIPOLAR-DIFFUSION ; IMAGING POLARIMETRY ; DARK CLOUDS ; GOULD BELT ; COLLAPSE ; SCUBA-2 ; CONTRACTION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000651529400001
资助机构	National Natural Science Foundation of China (NSFC) ; International Partnership Program of Chinese Academy of Sciences ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology ; Ministry of Science and Technology (MOST) in Taiwan ; NAOJ Fellowship ; JSPS KAKENHI ; New Faculty Startup Fund from Seoul National University ; National Research Council of Canada ; NSF ; center for Women In Science, Engineering and Technology (WISET) - Ministry of Science and ICT (MSIT) ; Vietnam National Foundation for Science and Technology Development (NAFOSTED)
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/4016]
专题	恒星形成与演化研究团组
通讯作者	Chakali, Eswaraiah
作者单位	1.Liverpool John Moores Univ, Astrophys Res Inst, IC2, Liverpool Sci Pk,146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England 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.UCL, Phys & Astron Dept, London WC1E 6BT, England 8.Meisei Univ, Fac Sci & Engn, Dept Phys, 2-1-1 Hodokubo, Hino, Tokyo 1918506, Japan 9.Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan 10.Kagawa Univ, Ctr Educ Dev & Support, Saiwai Cho 1-1, Takamatsu, Kagawa 7608522, Japan
推荐引用方式 GB/T 7714	Chakali, Eswaraiah,Li, Di,Furuya, Ray S.,et al. The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry[J]. ASTROPHYSICAL JOURNAL LETTERS,2021,912(2):15.
APA	Chakali, Eswaraiah.,Li, Di.,Furuya, Ray S..,Hasegawa, Tetsuo.,Ward-Thompson, Derek.,...&van Loo, Sven.(2021).The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry.ASTROPHYSICAL JOURNAL LETTERS,912(2),15.
MLA	Chakali, Eswaraiah,et al."The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry".ASTROPHYSICAL JOURNAL LETTERS 912.2(2021):15.