Search: (WFRF:(Cho Sang Hee)) srt2:(2020-2021) srt2:(2021) pers:(Tomisaka Kohji) >
Observations of Magnetic Fields Surrounding LkH alpha 101 Taken by the BISTRO Survey with JCMT-POL-2
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- Ngoc, Nguyen Bich (author)
- Vietnam Academy of Science and Technology
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- Diep, Pham Ngoc (author)
- Vietnam Academy of Science and Technology
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- Parsons, Harriet (author)
- East Asian Observatory
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- Pattle, Kate (author)
- National University of Ireland Galway
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- Hoang, Thiem (author)
- University of Science and Technology (UST),Korea Astronomy and Space Science Institute
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- Ward-Thompson, Derek (author)
- University of Central Lancashire
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- Tram, Le Ngoc (author)
- Vietnam Academy of Science and Technology
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- Hull, Charles L. H. (author)
- Atacama Large Millimeter-submillimeter Array (ALMA),National Astronomical Observatory of Japan
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- Tahani, Mehrnoosh (author)
- National Research Council Canada
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- Furuya, Ray (author)
- Tokushima University
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- Bastien, Pierre (author)
- National Research Council Canada,Université de Montréal
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- Qiu, Keping (author)
- Nanjing University
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- Hasegawa, Tetsuo (author)
- National Astronomical Observatory of Japan
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- Kwon, Woojin (author)
- Seoul National University
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- Doi, Yasuo (author)
- University of Tokyo, Japan
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- Lai, Shih-Ping (author)
- Academia Sinica Taiwan,National Tsing Hua University
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- Coude, Simon (author)
- NASA Ames Research Center
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- Berry, David (author)
- East Asian Observatory
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- Ching, Tao-Chung (author)
- Chinese Academy of Sciences
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- Hwang, Jihye (author)
- Korea Astronomy and Space Science Institute,University of Science and Technology (UST)
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- Soam, Archana (author)
- NASA Ames Research Center
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- Wang, Jia-Wei (author)
- Academia Sinica Taiwan
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- Arzoumanian, Doris (author)
- Universidade do Porto,University of Porto
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- Bourke, Tyler L. (author)
- University of Manchester,SKA Organisation
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- Byun, Do-Young (author)
- University of Science and Technology (UST),Korea Astronomy and Space Science Institute
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- Chen, Huei-Ru Vivien (author)
- Academia Sinica Taiwan,National Tsing Hua University
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- Chen, Zhiwei (author)
- Chinese Academy of Sciences
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- Chen, Wen Ping (author)
- National Central University
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- Chen, Mike (author)
- University of Victoria
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- Cho, Jungyeon (author)
- Chungnam National University
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- Choi, Yunhee (author)
- Korea Astronomy and Space Science Institute
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- Choi, Minho (author)
- Korea Astronomy and Space Science Institute
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- Chrysostomou, Antonio (author)
- University of Hertfordshire
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- Chung, Eun Jung (author)
- Chungnam National University
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- Dai, Sophia (author)
- Chinese Academy of Sciences
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- Francesco, James Di (author)
- University of Victoria,National Research Council Canada
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- Duan, Yan (author)
- Chinese Academy of Sciences
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- Duan, Hao-Yuan (author)
- National Tsing Hua University
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- Eden, David (author)
- Liverpool John Moores University
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- Eswaraiah, Chakali (author)
- Chinese Academy of Sciences
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- Fanciullo, Lapo (author)
- Academia Sinica Taiwan
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- Fiege, Jason (author)
- University of Manitoba
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- Fissel, Laura M. (author)
- Queen's University
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- Franzmann, Erica (author)
- University of Manitoba
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- Friberg, Per (author)
- National Radio Astronomy Observatory
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- Friesen, Rachel (author)
- National Radio Astronomy Observatory
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- Fuller, Gary (author)
- University of Manchester
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- Gledhill, Tim (author)
- University of Hertfordshire
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- Graves, Sarah (author)
- East Asian Observatory
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- Greaves, Jane (author)
- Cardiff University
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- Griffin, Matt (author)
- Cardiff University
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- Gu, Qilao (author)
- Chinese University of Hong Kong
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- Han, Ilseung (author)
- Korea Astronomy and Space Science Institute,University of Science and Technology (UST)
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- Hatchell, Jennifer (author)
- University of Exeter
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- Hayashi, Saeko (author)
- National Astronomical Observatory of Japan
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- Houde, Martin (author)
- Western University
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- Inoue, Tsuyoshi (author)
- Nagoya University
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- Inutsuka, Shu-ichiro (author)
- Nagoya University
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- Iwasaki, Kazunari (author)
- Doshisha University
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- Jeong, Il-Gyo (author)
- Korea Astronomy and Space Science Institute
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- Johnstone, Doug (author)
- University of Victoria,National Research Council Canada
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- Kang, Ji-hyun (author)
- Korea Astronomy and Space Science Institute
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- Kang, Sung-ju (author)
- Korea Astronomy and Space Science Institute
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- Kang, Miju (author)
- Korea Astronomy and Space Science Institute
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- Kataoka, Akimasa (author)
- National Astronomical Observatory of Japan
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- Kawabata, Koji (author)
- Hiroshima University
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- Kemper, Francisca (author)
- Academia Sinica Taiwan,European Southern Observatory Santiago
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- Kim, Kee-Tae (author)
- Korea Astronomy and Space Science Institute,University of Science and Technology (UST)
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- Kim, Jongsoo (author)
- University of Science and Technology (UST),Korea Astronomy and Space Science Institute
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- Pyo, Tae-Soo (author)
- National Astronomical Observatory of Japan,The Graduate University for Advanced Studies (SOKENDAI)
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- Qian, Lei (author)
- Chinese Academy of Sciences
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- Rao, Ramprasad (author)
- Academia Sinica Taiwan
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- Rawlings, Mark (author)
- East Asian Observatory
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- Rawlings, Jonathan (author)
- University College London (UCL)
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- Retter, Brendan (author)
- Cardiff University
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- Richer, John (author)
- University Of Cambridge
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- Rigby, Andrew (author)
- Cardiff University
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- Sadavoy, Sarah (author)
- Queen's University
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- Saito, Hiro (author)
- University of Tsukuba
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- Savini, Giorgio (author)
- University College London (UCL),Kwansei Gakuin University
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- Scaife, Anna (author)
- University of Manchester
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- Seta, Masumichi (author)
- Kwansei Gakuin University,National Astronomical Observatory of Japan
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- Kim, Gwanjeong (author)
- Tohoku University,National Astronomical Observatory of Japan
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- Kim, Shinyoung (author)
- Korea Astronomy and Space Science Institute,University of Science and Technology (UST)
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- Kim, Kyoung Hee (author)
- Korea Astronomy and Space Science Institute
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- Kim, Mi-Ryang (author)
- Korea Astronomy and Space Science Institute
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- Kirchschlager, Florian (author)
- University College London (UCL)
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- Kirk, Jason (author)
- University of Central Lancashire
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- Kobayashi, Masato I. N. (author)
- University of Tokyo, Japan,Tohoku University
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- Koch, Patrick M. (author)
- Academia Sinica Taiwan
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- Konyves, Vera (author)
- University of Central Lancashire
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- Kusune, Takayoshi (author)
- National Astronomical Observatory of Japan
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- University of Tokyo, Japan,McMaster University
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- Lacaille, Kevin (author)
- McMaster University,Dalhousie University
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- Chalmers tekniska högskola,Chalmers University of Technology
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- Lee, Sang-Sung (author)
- University of Science and Technology (UST),Korea Astronomy and Space Science Institute
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- Lee, Yong-Hee (author)
- Chinese Academy of Sciences,Kyung Hee University
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- Lee, Chin-Fei (author)
- Academia Sinica Taiwan
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- Lee, Jeong-Eun (author)
- Kyung Hee University,Chinese Academy of Sciences
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- Lee, Hyeseung (author)
- Chungnam National University
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- Lee, Chang Won (author)
- Korea Astronomy and Space Science Institute,University of Science and Technology (UST)
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- Li, Di (author)
- Chinese Academy of Sciences,University of KwaZulu-Natal
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- Li, Hua-bai (author)
- Chinese University of Hong Kong
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- Li, Dalei (author)
- Chinese Academy of Sciences
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- Liu, Hong-Li (author)
- Universidad de Concepción,University of Concepcion,Yunnan University
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- Liu, Junhao (author)
- Nanjing University
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- Liu, Tie (author)
- Chinese Academy of Sciences
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- Liu, Sheng-Yuan (author)
- Academia Sinica Taiwan
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- Lu, Xing (author)
- National Astronomical Observatory of Japan
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- Lyo, A-Ran (author)
- Korea Astronomy and Space Science Institute
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- Mairs, Steve (author)
- Kagawa University
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- Matsumura, Masafumi (author)
- Kagawa University
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- Matthews, Brenda (author)
- National Research Council Canada,University of Victoria
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- Moriarty-Schieven, Gerald (author)
- National Research Council Canada
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- Nagata, Tetsuya (author)
- Kyoto University
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- Nakamura, Fumitaka (author)
- The Graduate University for Advanced Studies (SOKENDAI),National Astronomical Observatory of Japan
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- Nakanishi, Hiroyuki (author)
- Kagoshima University
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- Ohashi, Nagayoshi (author)
- National Astronomical Observatory of Japan
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- Onaka, Takashi (author)
- University of Tokyo, Japan,McMaster University,Meisei University
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- Park, Geumsook (author)
- Korea Astronomy and Space Science Institute
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- Peretto, Nicolas (author)
- Cardiff University
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- Shimajiri, Yoshito (author)
- National Astronomical Observatory of Japan
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- Shinnaga, Hiroko (author)
- Kagoshima University
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- Tamura, Motohide (author)
- University of Tokyo, Japan,National Astronomical Observatory of Japan,National Institutes of Natural Sciences (NINS),McMaster University
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- Tang, Ya-Wen (author)
- Academia Sinica Taiwan
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- Tang, Xindi (author)
- Chinese Academy of Sciences
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- Tomisaka, Kohji (author)
- The Graduate University for Advanced Studies (SOKENDAI),National Astronomical Observatory of Japan
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- Tsukamoto, Yusuke (author)
- Kagoshima University
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- Viti, Serena (author)
- University College London (UCL)
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- Wang, Hongchi (author)
- Chinese Academy of Sciences
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- Whitworth, Anthony (author)
- Cardiff University
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- Xie, Jinjin (author)
- Chinese Academy of Sciences
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- Yen, Hsi-Wei (author)
- Academia Sinica Taiwan
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- Yoo, Hyunju (author)
- Korea Astronomy and Space Science Institute
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- Yuan, Jinghua (author)
- Chinese Academy of Sciences
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- Yun, Hyeong-Sik (author)
- Kyung Hee University,Chinese Academy of Sciences
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- Zenko, Tetsuya (author)
- Kyoto University
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- Zhang, Yapeng (author)
- Chinese University of Hong Kong
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- Zhang, Chuan-Peng (author)
- Chinese Academy of Sciences
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- Zhang, Guoyin (author)
- Chinese Academy of Sciences
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- Zhou, Jianjun (author)
- Chinese Academy of Sciences
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- Zhu, Lei (author)
- Chinese Academy of Sciences
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- Looze, Ilse de (author)
- University College London (UCL)
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- Andre, Philippe (author)
- Paris Diderot University, France
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Dowell, C. Darren (author)
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- Eyres, Stewart (author)
- University of South Wales
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- Falle, Sam (author)
- University of Leeds
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- Robitaille, Jean-Francois (author)
- Université Grenoble Alpes,Grenoble Alpes University
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- van Loo, Sven (author)
- University of Leeds
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(creator_code:org_t)
- 2021-02-08
- English.
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In: Astrophysical Journal. - : American Astronomical Society. - 1538-4357 .- 0004-637X. ; 908:1
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http://uhra.herts.ac...
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Abstract
Subject headings
Close
- We 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.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- Interstellar magnetic fields
- Molecular clouds
- Star formation
Publication and Content Type
- art (subject category)
- ref (subject category)
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