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Observations of Magnetic Fields Surrounding LkH alpha 101 Taken by the BISTRO Survey with JCMT-POL-2
Ngoc, Nguyen Bich1; Diep, Pham Ngoc1; Parsons, Harriet2; Pattle, Kate3; Hoang, Thiem4,5; Ward-Thompson, Derek6; Tram, Le Ngoc7; Hull, Charles L. H.8,9; Tahani, Mehrnoosh10; Furuya, Ray11; Bastien, Pierre10,12,13; Qiu, Keping14; Hasegawa, Tetsuo15; Kwon, Woojin16; Doi, Yasuo17; Lai, Shih-Ping18,19,20; Coude, Simon21; Berry, David2; Ching, Tao-Chung22,23; Hwang, Jihye4,5; Soam, Archana21; Wang, Jia-Wei20; Arzoumanian, Doris24; Bourke, Tyler L.25,26; Byun, Do-Young4,5; Chen, Huei-Ru Vivien18,19,20; Chen, Zhiwei27,28; Chen, Wen Ping29; Chen, Mike30; Cho, Jungyeon31; Choi, Yunhee4; Choi, Minho4; Chrysostomou, Antonio32; Chung, Eun Jung31; Dai, Sophia23; Francesco, James Di30,33; Duan, Yan23; Duan, Hao-Yuan18,19; Eden, David34; Eswaraiah, Chakali22,23; Fanciullo, Lapo20; Fiege, Jason35; Fissel, Laura M.36; Franzmann, Erica35; Friberg, Per37; Friesen, Rachel37; Fuller, Gary38; Gledhill, Tim32; Graves, Sarah2; Greaves, Jane39; Griffin, Matt39; Gu, Qilao40; Han, Ilseung4,5; Hatchell, Jennifer41; Hayashi, Saeko42; Houde, Martin43; Inoue, Tsuyoshi44; Inutsuka, Shu-ichiro44; Iwasaki, Kazunari45; Jeong, Il-Gyo4; Johnstone, Doug30,33; Kang, Ji-hyun4; Kang, Sung-ju4; Kang, Miju4; Kataoka, Akimasa46; Kawabata, Koji47,48,49; Kemper, Francisca20,50; Kim, Kee-Tae4,5; Kim, Jongsoo4,5; Pyo, Tae-Soo42,51; Qian, Lei22; Rao, Ramprasad20; Rawlings, Mark2; Rawlings, Jonathan52; Retter, Brendan39; Richer, John53,54; Rigby, Andrew39; Sadavoy, Sarah36; Saito, Hiro55; Savini, Giorgio56,57; Scaife, Anna38; Seta, Masumichi57,58; Kim, Gwanjeong58,59; Kim, Shinyoung4,5; Kim, Kyoung Hee4; Kim, Mi-Ryang4; Kirchschlager, Florian52; Kirk, Jason6; Kobayashi, Masato I. N.59,60; Koch, Patrick M.20; Konyves, Vera6; Kusune, Takayoshi15; Kwon, Jungmi60,61; Lacaille, Kevin61,62,63; Law, Chi-Yan40,63,64; Lee, Sang-Sung4,5; Lee, Yong-Hee64,65; Lee, Chin-Fei20; Lee, Jeong-Eun64,65; Lee, Hyeseung31; Lee, Chang Won4,5; Li, Di65,66; Li, Hua-bai40; Li, Dalei67; Liu, Hong-Li68,69; Liu, Junhao14,70; Liu, Tie71; Liu, Sheng-Yuan20; Lu, Xing72; Lyo, A-Ran4; Mairs, Steve73,74; Matsumura, Masafumi73,74; Matthews, Brenda30,33; Moriarty-Schieven, Gerald33; Nagata, Tetsuya75; Nakamura, Fumitaka46,51; Nakanishi, Hiroyuki76; Ohashi, Nagayoshi42; Onaka, Takashi60,61,77; Park, Geumsook4; Peretto, Nicolas39; Shimajiri, Yoshito15; Shinnaga, Hiroko76; Tamura, Motohide15,60,61,78; Tang, Ya-Wen20; Tang, Xindi67; Tomisaka, Kohji46,51; Tsukamoto, Yusuke76; Viti, Serena79; Wang, Hongchi80; Whitworth, Anthony39; Xie, Jinjin23; Yen, Hsi-Wei20; Yoo, Hyunju4; Yuan, Jinghua23; Yun, Hyeong-Sik64,65; Zenko, Tetsuya75; Zhang, Yapeng40; Zhang, Chuan-Peng22,23; Zhang, Guoyin22; Zhou, Jianjun67; Zhu, Lei22; Looze, Ilse de79; Andre, Philippe81; Dowell, C. Darren82; Eyres, Stewart83; Falle, Sam84; Robitaille, Jean-Francois85; van Loo, Sven86
2021-02-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume908Issue:1Pages:105
Contribution Rank64
AbstractWe report the first high spatial resolution measurement of magnetic fields surrounding LkH alpha 101, part of the Auriga-California molecular cloud. The observations were taken with the POL-2 polarimeter on the James Clerk Maxwell Telescope within the framework of the B-fields In Star-forming Region Observations (BISTRO) survey. Observed polarization of thermal dust emission at 850 mu m is found to be mostly associated with the redshifted gas component of the cloud. The magnetic field displays a relatively complex morphology. Two variants of the Davis-Chandrasekhar-Fermi method, unsharp masking and structure function, are used to calculate the strength of magnetic fields in the plane of the sky, yielding a similar result of B-POS similar to 115 mu G. The mass-to-magnetic-flux ratio in critical value units, lambda similar to 0.3, is the smallest among the values obtained for other regions surveyed by POL-2. This implies that the LkH alpha 101 region is subcritical, and the magnetic field is strong enough to prevent gravitational collapse. The inferred delta B/B-0 similar to 0.3 implies that the large-scale component of the magnetic field dominates the turbulent one. The variation of the polarization fraction with total emission intensity can be fitted by a power law with an index of alpha = 0.82 0.03, which lies in the range previously reported for molecular clouds. We find that the polarization fraction decreases rapidly with proximity to the only early B star (LkH alpha 101) in the region. Magnetic field tangling and the joint effect of grain alignment and rotational disruption by radiative torques can potentially explain such a decreasing trend.
KeywordInterstellar magnetic fields Molecular clouds Star formation
DOI10.3847/1538-4357/abd0fc
Indexed BySCI
Language英语
Funding ProjectChinese Academy of Sciences[XDB09000000] ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; Vietnam National Foundation for Science and Technology Development (NAFOSTED)[103.99-2019.368] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[2019R1A2C1087045] ; NAOJ Fellowship ; JSPS KAKENHI[18K13586] ; JSPS KAKENHI[20K14527] ; JSPS KAKENHI[18H05442] ; JSPS KAKENHI[15H02063] ; JSPS KAKENHI[22000005] ; JSPS KAKENHI[19K14775] ; National Research Council of Canada ; NSERC ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; Seoul National University ; Ministry of Science and Technology (MOST) in Taiwan[MOST 108-2112-M-001-003-MY2] ; Fondecyt[3190161] ; Ministry of Science and Technology of Taiwan[MoST107-2119-M-001-031-MY3] ; Academia Sinica[AS-IA-106-M03] ; [M16AL004]
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000616089400001
PublisherIOP PUBLISHING LTD
Funding OrganizationChinese Academy of Sciences ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) ; National Research Foundation of Korea (NRF) - Korea government (MSIT) ; NAOJ Fellowship ; JSPS KAKENHI ; National Research Council of Canada ; NSERC ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology ; Seoul National University ; Ministry of Science and Technology (MOST) in Taiwan ; Fondecyt ; Ministry of Science and Technology of Taiwan ; Academia Sinica
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Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3863
Collection射电天文研究室_恒星形成与演化研究团组
Corresponding AuthorDiep, Pham Ngoc
Affiliation1.Vietnam Acad Sci & Technol, Vietnam Natl Space Ctr, 18 Hoang Quoc Viet, Hanoi, Vietnam
2.East Asian Observ, 660 N Aohoku Pl,Univ Pk, Hilo, HI 96720 USA
3.Natl Univ Ireland Galway, Univ Rd, Galway H91 TK33, Ireland
4.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea
5.Univ Sci & Technol, 217 Gajeong Ro, Daejeon 34113, South Korea
6.Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England
7.Univ Sci & Technol Hanoi, Vietnam Acad Sci & Technol, 18 Hoang Quoc Viet, Hanoi, Vietnam
8.NAOJ Chile, Natl Astron Observ Japan, Alonso Cordova 3788,Off 61B, Santiago 7630422, Chile
9.Joint ALMA Observ, Alonso Cordova 3107, Santiago, Chile
10.Natl Res Council Canada, Herzberg Astron & Astrophys Res Ctr, Domin Radio Astrophys Observ, POB 248, Penticton, BC V2A 6J9, Canada
11.Tokushima Univ, Inst Liberal Arts & Sci, Minami Jousanajima Machi 1-1, Tokushima 7708502, Japan
12.Univ Montreal, Ctr Rech Astrophys Quebec, 1375,Ave Therese Lavoie Roux, Montreal, PQ H2V 0B3, Canada
13.Univ Montreal, Dept Phys, 1375,Ave Therese Lavoie Roux, Montreal, PQ H2V 0B3, Canada
14.Nanjing Univ, Sch Astron & Space Sci, 163 Xianlin Ave, Nanjing 210023, Peoples R China
15.Natl Astron Observ Japan, Natl Inst Nat Sci, Mitaka, Tokyo 1818588, Japan
16.Seoul Natl Univ SNU, Dept Earth Sci Educ, 1 Gwanak Ro, Seoul 08826, South Korea
17.Univ Tokyo, Grad Sch Arts & Sci, Dept Earth Sci & Astron, Meguro Ku, 3-8-1 Komaba, Tokyo 1538902, Japan
18.Natl Tsing Hua Univ, Inst Astron, Hsinchu 30013, Taiwan
19.Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan
20.Acad Sinica, Inst Astron & Astrophys, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan
21.Univ Space Res Assoc, NASA, Ames Res Ctr, SOFIA Sci Ctr, Moffett Field, CA 94035 USA
22.Chinese Acad Sci, CAS Key Lab FAST, Natl Astron Observ, Beijing, Peoples R China
23.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China
24.Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, PT-4150762 Porto, Portugal
25.SKA Org, Jodrell Bank, Macclesfield SK11 9FT, Cheshire, England
26.Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England
27.Chinese Acad Sci, Purple Mt Observ, 10 Yuanhua Rd, Nanjing 210023, Peoples R China
28.Chinese Acad Sci, Key Lab Radio Astron, 10 Yuanhua Rd, Nanjing 210023, Peoples R China
29.Natl Cent Univ, Inst Astron, Zhongli 32001, Taiwan
30.Univ Victoria, Dept Phys & Astron, Victoria, BC V8W 2Y2, Canada
31.Chungnam Natl Univ, Dept Astron & Space Sci, 99 Daehak Ro, Daejeon 34134, South Korea
32.Univ Hertfordshire, Sch Phys Astron & Math, Coll Lane, Hatfield AL10 9AB, Herts, England
33.NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
34.Liverpool John Moores Univ, Astrophys Res Inst, IC2, Liverpool Sci Pk,146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England
35.Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T2N2, Canada
36.Queens Univ, Dept Phys Engn Phys & Astrophys, Kingston, ON K7L 3N6, Canada
37.Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA
38.Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys, Oxford Rd, Manchester M13 9PL, Lancs, England
39.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, Wales
40.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China
41.Univ Exeter, Phys & Astron, Stocker Rd, Exeter EX4 4QL, Devon, England
42.Natl Astron Observ Japan, Subaru Telescope, 650 N Aohoku Pl, Hilo, HI 96720 USA
43.Univ Western Ontario, Dept Phys & Astron, 1151 Richmond St, London, ON N6A 3K7, Canada
44.Nagoya Univ, Grad Sch Sci, Dept Phys, Chikusa Ku, Nagoya, Aichi 4648602, Japan
45.Doshisha Univ, Dept Environm Syst Sci, Miyakodani 1-3, Kyoto 6100394, Japan
46.Natl Astron Observ Japan, Div Theoret Astron, Mitaka, Tokyo 1818588, Japan
47.Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Kagamiyama 1-3-1, Hiroshima 7398526, Japan
48.Hiroshima Univ, Dept Phys, Kagamiyama 1-3-1, Hiroshima 7398526, Japan
49.Hiroshima Univ, Core Res Energet Universe CORE, Kagamiyama 1-3-1, Hiroshima 7398526, Japan
50.European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany
51.SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
52.UCL, Dept Phys & Astron, London WC1E 6BT, England
53.Cavendish Lab, Astrophys Grp, JJ Thomson Ave, Cambridge CB3 0HE, England
54.Univ Cambridge, Kavli Inst Cosmol, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
55.Univ Tsukuba, Fac Pure & Appl Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058577, Japan
56.UCL, Phys & Astron Dept, OSL, London WC1E 6BT, England
57.Kwansei Gakuin Univ, Sch Sci & Technol, Dept Phys, 2-1 Gakuen, Sanda, Hyogo 6691337, Japan
58.Natl Astron Observ Japan, Natl Inst Nat Sci, Nobeyama Radio Observ, Minamisa Ku, Minamimaki, Nagano 3841305, Japan
59.Tohoku Univ, Astron Inst, Grad Sch Sci, Aoba Ku, Sendai, Miyagi 9808578, Japan
60.Univ Tokyo, Grad Sch Sci, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
61.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
62.Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax B3H 4R2, NS, Canada
63.Chalmers Univ Technol, Dept Space Earth & Environm, SE-41296 Gothenburg, Sweden
64.Kyung Hee Univ, Sch Space Res, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi Do, South Korea
65.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
66.Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa
67.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
68.Univ Concepcion, Dept Astron, Av Esteban Iturra S-N,160-C, Concepcion, Chile
69.Yunnan Univ, Dept Astron, Kunming 650091, Yunnan, Peoples R China
70.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Peoples R China
71.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
72.Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan
73.Kagawa Univ, Fac Educ, Saiwai Cho 1-1, Takamatsu, Kagawa 7608522, Japan
74.Kagawa Univ, Ctr Educ Dev & Support, Saiwai Cho 1-1, Takamatsu, Kagawa 7608522, Japan
75.Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan
76.Kagoshima Univ, Grad Sch Sci & Engn, Dept Phys & Astron, 1-21-35 Korimoto, Kagoshima 8900065, Japan
77.Meisei Univ, Dept Phys, Fac Sci & Engn, 2-1-1 Hodokubo, Hino, Tokyo 11918506, Japan
78.Natl Inst Nat Sci, Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 818588, Japan
79.UCL, Phys & Astron Dept, London WC1E 6BT, England
80.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Peoples R China
81.Univ Paris Diderot, CEA Saclay, Lab AIM CEA, DSM,CNRS,IRFU,Serv Astrophys, F-91191 Gif Sur Yvette, France
82.Jet Prop Lab, M-S 169-506,4800 Oak Grove Dr, Pasadena, CA 91109 USA
83.Univ South Wales, Pontypridd CF37 1DL, M Glam, Wales
84.Univ Leeds, Dept Appl Math, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
85.Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
86.Univ Leeds, Sch Phys & Astron, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
Recommended Citation
GB/T 7714
Ngoc, Nguyen Bich,Diep, Pham Ngoc,Parsons, Harriet,et al. Observations of Magnetic Fields Surrounding LkH alpha 101 Taken by the BISTRO Survey with JCMT-POL-2[J]. ASTROPHYSICAL JOURNAL,2021,908(1):105.
APA Ngoc, Nguyen Bich.,Diep, Pham Ngoc.,Parsons, Harriet.,Pattle, Kate.,Hoang, Thiem.,...&van Loo, Sven.(2021).Observations of Magnetic Fields Surrounding LkH alpha 101 Taken by the BISTRO Survey with JCMT-POL-2.ASTROPHYSICAL JOURNAL,908(1),105.
MLA Ngoc, Nguyen Bich,et al."Observations of Magnetic Fields Surrounding LkH alpha 101 Taken by the BISTRO Survey with JCMT-POL-2".ASTROPHYSICAL JOURNAL 908.1(2021):105.
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