Sökning: WFRF:(Ray David) > Observations of Mag...
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000 | 14848naa a2202149 4500 | |
001 | oai:research.chalmers.se:848f3406-8246-45fc-8275-47e9af2856f7 | |
003 | SwePub | |
008 | 210304s2021 | |||||||||||000 ||eng| | |
024 | 7 | a https://doi.org/10.3847/1538-4357/abd0fc2 DOI |
024 | 7 | a https://research.chalmers.se/publication/5226192 URI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Ngoc, Nguyen Bichu Vietnam Academy of Science and Technology4 aut |
245 | 1 0 | a Observations of Magnetic Fields Surrounding LkH alpha 101 Taken by the BISTRO Survey with JCMT-POL-2 |
264 | c 2021-02-08 | |
264 | 1 | b American Astronomical Society,c 2021 |
520 | a 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. | |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Fusion, plasma och rymdfysik0 (SwePub)103032 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Fusion, Plasma and Space Physics0 (SwePub)103032 hsv//eng |
653 | a Interstellar magnetic fields | |
653 | a Molecular clouds | |
653 | a Star formation | |
700 | 1 | a Diep, Pham Ngocu Vietnam Academy of Science and Technology4 aut |
700 | 1 | a Parsons, Harrietu East Asian Observatory4 aut |
700 | 1 | a Pattle, Kateu National University of Ireland Galway4 aut |
700 | 1 | a Hoang, Thiemu University of Science and Technology (UST),Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Ward-Thompson, Dereku University of Central Lancashire4 aut |
700 | 1 | a Tram, Le Ngocu Vietnam Academy of Science and Technology4 aut |
700 | 1 | a Hull, Charles L. H.u Atacama Large Millimeter-submillimeter Array (ALMA),National Astronomical Observatory of Japan4 aut |
700 | 1 | a Tahani, Mehrnooshu National Research Council Canada4 aut |
700 | 1 | a Furuya, Rayu Tokushima University4 aut |
700 | 1 | a Bastien, Pierreu National Research Council Canada,Université de Montréal4 aut |
700 | 1 | a Qiu, Kepingu Nanjing University4 aut |
700 | 1 | a Hasegawa, Tetsuou National Astronomical Observatory of Japan4 aut |
700 | 1 | a Kwon, Woojinu Seoul National University4 aut |
700 | 1 | a Doi, Yasuou University of Tokyo, Japan4 aut |
700 | 1 | a Lai, Shih-Pingu Academia Sinica Taiwan,National Tsing Hua University4 aut |
700 | 1 | a Coude, Simonu NASA Ames Research Center4 aut |
700 | 1 | a Berry, Davidu East Asian Observatory4 aut |
700 | 1 | a Ching, Tao-Chungu Chinese Academy of Sciences4 aut |
700 | 1 | a Hwang, Jihyeu Korea Astronomy and Space Science Institute,University of Science and Technology (UST)4 aut |
700 | 1 | a Soam, Archanau NASA Ames Research Center4 aut |
700 | 1 | a Wang, Jia-Weiu Academia Sinica Taiwan4 aut |
700 | 1 | a Arzoumanian, Dorisu Universidade do Porto,University of Porto4 aut |
700 | 1 | a Bourke, Tyler L.u University of Manchester,SKA Organisation4 aut |
700 | 1 | a Byun, Do-Youngu University of Science and Technology (UST),Korea Astronomy and Space Science Institute4 aut |
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700 | 1 | a Choi, Yunheeu Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Choi, Minhou Korea Astronomy and Space Science Institute4 aut |
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700 | 1 | a Chung, Eun Jungu Chungnam National University4 aut |
700 | 1 | a Dai, Sophiau Chinese Academy of Sciences4 aut |
700 | 1 | a Francesco, James Diu University of Victoria,National Research Council Canada4 aut |
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700 | 1 | a Eswaraiah, Chakaliu Chinese Academy of Sciences4 aut |
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700 | 1 | a Fiege, Jasonu University of Manitoba4 aut |
700 | 1 | a Fissel, Laura M.u Queen's University4 aut |
700 | 1 | a Franzmann, Ericau University of Manitoba4 aut |
700 | 1 | a Friberg, Peru National Radio Astronomy Observatory4 aut |
700 | 1 | a Friesen, Rachelu National Radio Astronomy Observatory4 aut |
700 | 1 | a Fuller, Garyu University of Manchester4 aut |
700 | 1 | a Gledhill, Timu University of Hertfordshire4 aut |
700 | 1 | a Graves, Sarahu East Asian Observatory4 aut |
700 | 1 | a Greaves, Janeu Cardiff University4 aut |
700 | 1 | a Griffin, Mattu Cardiff University4 aut |
700 | 1 | a Gu, Qilaou Chinese University of Hong Kong4 aut |
700 | 1 | a Han, Ilseungu Korea Astronomy and Space Science Institute,University of Science and Technology (UST)4 aut |
700 | 1 | a Hatchell, Jenniferu University of Exeter4 aut |
700 | 1 | a Hayashi, Saekou National Astronomical Observatory of Japan4 aut |
700 | 1 | a Houde, Martinu Western University4 aut |
700 | 1 | a Inoue, Tsuyoshiu Nagoya University4 aut |
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700 | 1 | a Iwasaki, Kazunariu Doshisha University4 aut |
700 | 1 | a Jeong, Il-Gyou Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Johnstone, Dougu University of Victoria,National Research Council Canada4 aut |
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700 | 1 | a Kang, Mijuu Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Kataoka, Akimasau National Astronomical Observatory of Japan4 aut |
700 | 1 | a Kawabata, Kojiu Hiroshima University4 aut |
700 | 1 | a Kemper, Franciscau Academia Sinica Taiwan,European Southern Observatory Santiago4 aut |
700 | 1 | a Kim, Kee-Taeu Korea Astronomy and Space Science Institute,University of Science and Technology (UST)4 aut |
700 | 1 | a Kim, Jongsoou University of Science and Technology (UST),Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Pyo, Tae-Soou National Astronomical Observatory of Japan,The Graduate University for Advanced Studies (SOKENDAI)4 aut |
700 | 1 | a Qian, Leiu Chinese Academy of Sciences4 aut |
700 | 1 | a Rao, Ramprasadu Academia Sinica Taiwan4 aut |
700 | 1 | a Rawlings, Marku East Asian Observatory4 aut |
700 | 1 | a Rawlings, Jonathanu University College London (UCL)4 aut |
700 | 1 | a Retter, Brendanu Cardiff University4 aut |
700 | 1 | a Richer, Johnu University Of Cambridge4 aut |
700 | 1 | a Rigby, Andrewu Cardiff University4 aut |
700 | 1 | a Sadavoy, Sarahu Queen's University4 aut |
700 | 1 | a Saito, Hirou University of Tsukuba4 aut |
700 | 1 | a Savini, Giorgiou University College London (UCL),Kwansei Gakuin University4 aut |
700 | 1 | a Scaife, Annau University of Manchester4 aut |
700 | 1 | a Seta, Masumichiu Kwansei Gakuin University,National Astronomical Observatory of Japan4 aut |
700 | 1 | a Kim, Gwanjeongu Tohoku University,National Astronomical Observatory of Japan4 aut |
700 | 1 | a Kim, Shinyoungu Korea Astronomy and Space Science Institute,University of Science and Technology (UST)4 aut |
700 | 1 | a Kim, Kyoung Heeu Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Kim, Mi-Ryangu Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Kirchschlager, Florianu University College London (UCL)4 aut |
700 | 1 | a Kirk, Jasonu University of Central Lancashire4 aut |
700 | 1 | a Kobayashi, Masato I. N.u University of Tokyo, Japan,Tohoku University4 aut |
700 | 1 | a Koch, Patrick M.u Academia Sinica Taiwan4 aut |
700 | 1 | a Konyves, Verau University of Central Lancashire4 aut |
700 | 1 | a Kusune, Takayoshiu National Astronomical Observatory of Japan4 aut |
700 | 1 | a Kwon, Jungmiu University of Tokyo, Japan,McMaster University4 aut |
700 | 1 | a Lacaille, Kevinu McMaster University,Dalhousie University4 aut |
700 | 1 | a Law, Chi Yan,d 1990u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)ychi |
700 | 1 | a Lee, Sang-Sungu University of Science and Technology (UST),Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Lee, Yong-Heeu Chinese Academy of Sciences,Kyung Hee University4 aut |
700 | 1 | a Lee, Chin-Feiu Academia Sinica Taiwan4 aut |
700 | 1 | a Lee, Jeong-Eunu Kyung Hee University,Chinese Academy of Sciences4 aut |
700 | 1 | a Lee, Hyeseungu Chungnam National University4 aut |
700 | 1 | a Lee, Chang Wonu Korea Astronomy and Space Science Institute,University of Science and Technology (UST)4 aut |
700 | 1 | a Li, Diu Chinese Academy of Sciences,University of KwaZulu-Natal4 aut |
700 | 1 | a Li, Hua-baiu Chinese University of Hong Kong4 aut |
700 | 1 | a Li, Daleiu Chinese Academy of Sciences4 aut |
700 | 1 | a Liu, Hong-Liu Universidad de Concepción,University of Concepcion,Yunnan University4 aut |
700 | 1 | a Liu, Junhaou Nanjing University4 aut |
700 | 1 | a Liu, Tieu Chinese Academy of Sciences4 aut |
700 | 1 | a Liu, Sheng-Yuanu Academia Sinica Taiwan4 aut |
700 | 1 | a Lu, Xingu National Astronomical Observatory of Japan4 aut |
700 | 1 | a Lyo, A-Ranu Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Mairs, Steveu Kagawa University4 aut |
700 | 1 | a Matsumura, Masafumiu Kagawa University4 aut |
700 | 1 | a Matthews, Brendau National Research Council Canada,University of Victoria4 aut |
700 | 1 | a Moriarty-Schieven, Geraldu National Research Council Canada4 aut |
700 | 1 | a Nagata, Tetsuyau Kyoto University4 aut |
700 | 1 | a Nakamura, Fumitakau The Graduate University for Advanced Studies (SOKENDAI),National Astronomical Observatory of Japan4 aut |
700 | 1 | a Nakanishi, Hiroyukiu Kagoshima University4 aut |
700 | 1 | a Ohashi, Nagayoshiu National Astronomical Observatory of Japan4 aut |
700 | 1 | a Onaka, Takashiu University of Tokyo, Japan,McMaster University,Meisei University4 aut |
700 | 1 | a Park, Geumsooku Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Peretto, Nicolasu Cardiff University4 aut |
700 | 1 | a Shimajiri, Yoshitou National Astronomical Observatory of Japan4 aut |
700 | 1 | a Shinnaga, Hirokou Kagoshima University4 aut |
700 | 1 | a Tamura, Motohideu University of Tokyo, Japan,National Astronomical Observatory of Japan,National Institutes of Natural Sciences (NINS),McMaster University4 aut |
700 | 1 | a Tang, Ya-Wenu Academia Sinica Taiwan4 aut |
700 | 1 | a Tang, Xindiu Chinese Academy of Sciences4 aut |
700 | 1 | a Tomisaka, Kohjiu The Graduate University for Advanced Studies (SOKENDAI),National Astronomical Observatory of Japan4 aut |
700 | 1 | a Tsukamoto, Yusukeu Kagoshima University4 aut |
700 | 1 | a Viti, Serenau University College London (UCL)4 aut |
700 | 1 | a Wang, Hongchiu Chinese Academy of Sciences4 aut |
700 | 1 | a Whitworth, Anthonyu Cardiff University4 aut |
700 | 1 | a Xie, Jinjinu Chinese Academy of Sciences4 aut |
700 | 1 | a Yen, Hsi-Weiu Academia Sinica Taiwan4 aut |
700 | 1 | a Yoo, Hyunjuu Korea Astronomy and Space Science Institute4 aut |
700 | 1 | a Yuan, Jinghuau Chinese Academy of Sciences4 aut |
700 | 1 | a Yun, Hyeong-Siku Kyung Hee University,Chinese Academy of Sciences4 aut |
700 | 1 | a Zenko, Tetsuyau Kyoto University4 aut |
700 | 1 | a Zhang, Yapengu Chinese University of Hong Kong4 aut |
700 | 1 | a Zhang, Chuan-Pengu Chinese Academy of Sciences4 aut |
700 | 1 | a Zhang, Guoyinu Chinese Academy of Sciences4 aut |
700 | 1 | a Zhou, Jianjunu Chinese Academy of Sciences4 aut |
700 | 1 | a Zhu, Leiu Chinese Academy of Sciences4 aut |
700 | 1 | a Looze, Ilse deu University College London (UCL)4 aut |
700 | 1 | a Andre, Philippeu Paris Diderot University, France4 aut |
700 | 1 | a Dowell, C. Darren4 aut |
700 | 1 | a Eyres, Stewartu University of South Wales4 aut |
700 | 1 | a Falle, Samu University of Leeds4 aut |
700 | 1 | a Robitaille, Jean-Francoisu Université Grenoble Alpes,Grenoble Alpes University4 aut |
700 | 1 | a van Loo, Svenu University of Leeds4 aut |
710 | 2 | a Vietnam Academy of Science and Technologyb East Asian Observatory4 org |
773 | 0 | t Astrophysical Journald : American Astronomical Societyg 908:1q 908:1x 1538-4357x 0004-637X |
856 | 4 | u http://uhra.herts.ac.uk/bitstream/2299/24117/1/2012.04297v1.pdf |
856 | 4 8 | u https://doi.org/10.3847/1538-4357/abd0fc |
856 | 4 8 | u https://research.chalmers.se/publication/522619 |
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