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The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43

文献类型：期刊论文

作者Karoly, Janik102; Ward-Thompson, Derek102; Pattle, Kate101; Berry, David100; Whitworth, Anthony99; Kirk, Jason102; Bastien, Pierre97,98; Ching, Tao-Chung96; Coude, Simon94,95; Hwang, Jihye92,93
刊名ASTROPHYSICAL JOURNAL
出版日期2023-07-01
卷号952期号:1页码:18
ISSN号0004-637X
DOI10.3847/1538-4357/acd6f2
通讯作者Karoly, Janik(jkaroly@uclan.ac.uk)
英文摘要We present observations of polarized dust emission at 850 mu m from the L43 molecular cloud, which sits in the Ophiuchus cloud complex. The data were taken using SCUBA-2/POL-2 on the James Clerk Maxwell Telescope as a part of the BISTRO large program. L43 is a dense (N-H2 similar to 10(22) - 10(23) cm(-2)) complex molecular cloud with a submillimeter-bright starless core and two protostellar sources. There appears to be an evolutionary gradient along the isolated filament that L43 is embedded within, with the most evolved source closest to the Sco OB2 association. One of the protostars drives a CO outflow that has created a cavity to the southeast. We see a magnetic field that appears to be aligned with the cavity walls of the outflow, suggesting interaction with the outflow. We also find a magnetic field strength of up to similar to 160 +/- 30 mu G in the main starless core and up to similar to 90 +/- 40 mu G in the more diffuse, extended region. These field strengths give magnetically super- and subcritical values, respectively, and both are found to be roughly trans-Alfvenic. We also present a new method of data reduction for these denser but fainter objects like starless cores.
WOS关键词GOULD BELT SURVEY ; OPHIUCHUS MOLECULAR CLOUD ; STAR-FORMATION ; DARK CLOUDS ; MU-M ; DENSE CORES ; SCUBA-2 OBSERVATIONS ; IMAGING POLARIMETRY ; LINEAR-POLARIZATION ; CO
资助项目Science and Technology Facilities Council (STFC)[18H05442] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[2022-1-840-05] ; Korea Astronomy and Space Science Institute - Korea government (MSIT)[NRF-2021R1F1A1061794] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[2017YFA0402700] ; National Key Ramp;D Program of China[U1731237] ; National Key Ramp;D Program of China[22000005] ; National Natural Science Foundation of China (NSFC)[CMS-CSST-2021-B06] ; China Manned Space Project[111-2811-M-005-007] ; JSPS KAKENHI[19K14775] ; JSPS KAKENHI[RJF/2020/000071] ; JSPS KAKENHI[M20AL018] ; international Gemini Observatory ; NSF's NOIRLab ; NAOJ Fellowship ; Ministry of Science and Technology of Taiwan[NRF-2022R1I1A1A01053862] ; Ministry of Science and Technology of Taiwan[PID2019-105552RB-C43] ; NRC Canada ; NSERC Discovery Grant ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education[RJF/2020/000071] ; Spanish State Research Agency (AEI)[ST\R000786\1] ; Agencia Canaria de Investigacin, Innovacin y Sociedad de la Informacin (ACIISI) under the European FEDER (FONDO EUROPEO DE DESARROLLO REGIONAL) de Canarias[2017YFA0402604] ; Science and Engineering Research Board (SERB), Department of Science and Technology (DST) ; Korea Astronomy and Space Science Institute ; Science and Technology Facilities Council of the United Kingdom ; [NRF-2019R1A2C1010851] ; [109-2112-M-005-003 -MY3] ; [URF\R1\211322] ; [KG18K13586] ; [KG20K14527] ; [KG22H01271] ; [15H02063]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001036964700001
出版者IOP Publishing Ltd
资助机构Science and Technology Facilities Council (STFC) ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology ; Korea Astronomy and Space Science Institute - Korea government (MSIT) ; National Research Foundation of Korea (NRF) - Korea government (MSIT) ; National Key Ramp;D Program of China ; National Natural Science Foundation of China (NSFC) ; China Manned Space Project ; JSPS KAKENHI ; international Gemini Observatory ; NSF's NOIRLab ; NAOJ Fellowship ; Ministry of Science and Technology of Taiwan ; NRC Canada ; NSERC Discovery Grant ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Spanish State Research Agency (AEI) ; Agencia Canaria de Investigacin, Innovacin y Sociedad de la Informacin (ACIISI) under the European FEDER (FONDO EUROPEO DE DESARROLLO REGIONAL) de Canarias ; Science and Engineering Research Board (SERB), Department of Science and Technology (DST) ; Korea Astronomy and Space Science Institute ; Science and Technology Facilities Council of the United Kingdom
源URL[http://ir.xao.ac.cn/handle/45760611-7/5343]  
专题恒星形成与演化研究团组
通讯作者Karoly, Janik
作者单位1.UCL, Dept Phys & Astron, London WC1E 6BT, England
2.Univ Leeds, Sch Phys & Astron, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
3.Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
4.ULL, Dept Astrofis, E-38206 San Cristobal la Laguna, Tenerife, Spain
5.Inst Astrofis Canarias, E-38200 Tenerife, Canary Islands, Spain
6.NASA, Ames Res Ctr, SOFIA Sci Ctr, Univ Space Res Assoc, Moffett Field, CA 94035 USA
7.Univ Leeds, Dept Appl Math, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
8.Univ South Wales, Pontypridd CF37 1DL, M Glam, Wales
9.Armagh Observ & Planetarium, Coll Hill, Armagh BT61 9DG, North Ireland
10.Jet Prop Lab, M-S 169-506,4800 Oak Grove Dr, Pasadena, CA 91109 USA
推荐引用方式
GB/T 7714		 Karoly, Janik,Ward-Thompson, Derek,Pattle, Kate,et al. The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43[J]. ASTROPHYSICAL JOURNAL,2023,952(1):18.
APA Karoly, Janik.,Ward-Thompson, Derek.,Pattle, Kate.,Berry, David.,Whitworth, Anthony.,...&van Loo, Sven.(2023).The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43.ASTROPHYSICAL JOURNAL,952(1),18.
MLA Karoly, Janik,et al."The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43".ASTROPHYSICAL JOURNAL 952.1(2023):18.

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来源：新疆天文台

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