The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament
Journal article, 2022
We present 850 mu m dust polarization observations of the massive DR21 filament from the B-fields In STar-forming Region Observations (BISTRO) survey, using the POL-2 polarimeter and the SCUBA-2 camera on the James Clerk Maxwell Telescope. We detect ordered magnetic fields perpendicular to the parsec-scale ridge of the DR21 main filament. In the subfilaments, the magnetic fields are mainly parallel to the filamentary structures and smoothly connect to the magnetic fields of the main filament. We compare the POL-2 and Planck dust polarization observations to study the magnetic field structures of the DR21 filament on 0.1-10 pc scales. The magnetic fields revealed in the Planck data are well-aligned with those of the POL-2 data, indicating a smooth variation of magnetic fields from large to small scales. The plane-of-sky magnetic field strengths derived from angular dispersion functions of dust polarization are 0.6-1.0 mG in the DR21 filament and similar to 0.1 mG in the surrounding ambient gas. The mass-to-flux ratios are found to be magnetically supercritical in the filament and slightly subcritical to nearly critical in the ambient gas. The alignment between column density structures and magnetic fields changes from random alignment in the low-density ambient gas probed by Planck to mostly perpendicular in the high-density main filament probed by James Clerk Maxwell Telescope. The magnetic field structures of the DR21 filament are in agreement with MHD simulations of a strongly magnetized medium, suggesting that magnetic fields play an important role in shaping the DR21 main filament and subfilaments.
Author
Tao-Chung Ching
Zhejiang Lab
Chinese Academy of Sciences
National Radio Astronomy Observatory Socorro
Keping Qiu
Nanjing University
Di Li
Chinese Academy of Sciences
University of KwaZulu-Natal
Zhiyuan Ren
Chinese Academy of Sciences
Shih-Ping Lai
National Tsing Hua University
Academia Sinica
David Berry
East Asian Observatory
Kate Pattle
University College London (UCL)
Ray Furuya
Tokushima University
Derek Ward-Thompson
University of Central Lancashire
Doug Johnstone
National Research Council Canada
University of Victoria
Patrick M. Koch
Academia Sinica
Chang Won Lee
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Thiem Hoang
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Tetsuo Hasegawa
National Institutes of Natural Sciences
Woojin Kwon
Seoul National University
Pierre Bastien
Université de Montréal
Chakali Eswaraiah
Indian Institute of Science Education & Research (IISER)
Chinese Academy of Sciences
Jia-Wei Wang
Academia Sinica
Kyoung Hee Kim
Korea Astronomy and Space Science Institute
Ulsan National Institute of Science and Technology (UNIST)
Jihye Hwang
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Archana Soam
Indian Institute of Astrophysics
A-Ran Lyo
Korea Astronomy and Space Science Institute
Junhao Liu
East Asian Observatory
Valentin J. M. Le Gouellec
University Paris-Saclay
NASA Ames Research Center
Doris Arzoumanian
National Institutes of Natural Sciences
Anthony Whitworth
Cardiff University
James Di Francesco
National Research Council Canada
University of Victoria
Frederick Poidevin
Instituto de Astrofísica de Canarias
University of La Laguna
Tie Liu
Chinese Academy of Sciences
Simon Coude
Worcester State University
Harvard-Smithsonian Center for Astrophysics
Mehrnoosh Tahani
Stanford University
National Research Council Canada
Hong-Li Liu
Yunnan University
Takashi Onaka
University of Tokyo
Meisei University
Dalei Li
Chinese Academy of Sciences
Motohide Tamura
National Institutes of Natural Sciences
University of Tokyo
Zhiwei Chen
Chinese Academy of Sciences
Xindi Tang
Chinese Academy of Sciences
Florian Kirchschlager
University College London (UCL)
Tyler L. Bourke
Square Kilometre Array, UK
University of Manchester
Do-Young Byun
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Mike Chen
Zhejiang Lab
Huei-Ru Vivien Chen
National Tsing Hua University
Academia Sinica
Wen Ping Chen
National Central University
Jungyeon Cho
Chungnam National University
Yunhee Choi
Korea Astronomy and Space Science Institute
Youngwoo Choi
Seoul National University
Minho Choi
Korea Astronomy and Space Science Institute
Antonio Chrysostomou
Square Kilometre Array, UK
Eun Jung Chung
Chungnam National University
Y. Sophia Dai
Chinese Academy of Sciences
Pham Ngoc Diep
Vietnam Academy of Science and Technology
Yasuo Doi
University of Tokyo
Yan Duan
Chinese Academy of Sciences
Hao-Yuan Duan
National Tsing Hua University
David Eden
Armagh Observatory and Planetarium
Lapo Fanciullo
National Chung Hsing University
Academia Sinica
Jason Fiege
University of Manitoba
Laura M. Fissel
Queen's University
Erica Franzmann
University of Manitoba
Per Friberg
East Asian Observatory
Rachel Friesen
National Radio Astronomy Observatory
Gary Fuller
University of Manchester
Tim Gledhill
University of Hertfordshire
Sarah Graves
East Asian Observatory
Jane Greaves
Cardiff University
Matt Griffin
Cardiff University
Qilao Gu
Chinese Academy of Sciences
Ilseung Han
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Saeko Hayashi
National Astronomical Observatory of Japan
Martin Houde
Western University
Charles L. H. Hull
National Astronomical Observatory of Japan
Atacama Large Millimeter-submillimeter Array (ALMA)
Tsuyoshi Inoue
Nagoya University
Shu-ichiro Inutsuka
Nagoya University
Kazunari Iwasaki
Doshisha University
Il-Gyo Jeong
Korea Astronomy and Space Science Institute
Kyungpook National University
Vera Konyves
University of Central Lancashire
Ji-hyun Kang
Korea Astronomy and Space Science Institute
Miju Kang
Korea Astronomy and Space Science Institute
Janik Karoly
University of Central Lancashire
Akimasa Kataoka
National Institutes of Natural Sciences
Koji Kawabata
Hiroshima University
F. Kemper
Catalan Institution for Research and Advanced Studies
Spanish National Research Council (CSIC)
Institute of Space Studies of Catalonia (IEEC)
Jongsoo Kim
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Mi-Ryang Kim
Korea Astronomy and Space Science Institute
Shinyoung Kim
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Hyosung Kim
Seoul National University
Kee-Tae Kim
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Gwanjeong Kim
National Institutes of Natural Sciences
Jason Kirk
University of Central Lancashire
Masato I. N. Kobayashi
Tohoku University
Takayoshi Kusune
Tohoku University
Jungmi Kwon
University of Tokyo
Kevin Lacaille
Dalhousie University
McMaster University
Chi Yan Law
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
Sang-Sung Lee
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Hyeseung Lee
Chungnam National University
Jeong-Eun Lee
Kyung Hee University
Chin-Fei Lee
Academia Sinica
Yong-Hee Lee
Kyung Hee University
East Asian Observatory
Guangxing Li
Yunnan University
Hua-bai Li
Chinese University of Hong Kong
Sheng-Jun Lin
National Tsing Hua University
Sheng-Yuan Liu
Academia Sinica
Xing Lu
Chinese Academy of Sciences
Steve Mairs
East Asian Observatory
Masafumi Matsumura
Kagawa University
Brenda Matthews
National Research Council Canada
University of Victoria
Gerald Moriarty-Schieven
National Research Council Canada
Tetsuya Nagata
Kyoto University
Fumitaka Nakamura
The Graduate University for Advanced Studies (SOKENDAI)
National Institutes of Natural Sciences
Hiroyuki Nakanishi
Kagoshima University
Nguyen Bich Ngoc
Okinawa Institute of Science and Technology Graduate University
Vietnam Academy of Science and Technology
Nagayoshi Ohashi
Academia Sinica
East Asian Observatory
Geumsook Park
Korea Astronomy and Space Science Institute
Harriet Parsons
East Asian Observatory
Nicolas Peretto
Cardiff University
Felix Priestley
Cardiff University
Tae-Soo Pyo
The Graduate University for Advanced Studies (SOKENDAI)
National Astronomical Observatory of Japan
Lei Qian
Chinese Academy of Sciences
Ramprasad Rao
Academia Sinica
Mark Rawlings
Gemini Observatory North
East Asian Observatory
Jonathan Rawlings
University College London (UCL)
Brendan Retter
Cardiff University
John Richer
University of Cambridge
Andrew Rigby
Cardiff University
Sarah Sadavoy
Queen's University
Hiro Saito
University of Tsukuba
Giorgio Savini
University College London (UCL)
Masumichi Seta
Kwansei Gakuin University
Yoshito Shimajiri
National Institutes of Natural Sciences
Hiroko Shinnaga
Kagoshima University
Ya-Wen Tang
Academia Sinica
Kohji Tomisaka
National Institutes of Natural Sciences
The Graduate University for Advanced Studies (SOKENDAI)
Le Ngoc Tram
Vietnam Academy of Science and Technology
Yusuke Tsukamoto
Kagoshima University
Serena Viti
University College London (UCL)
Hongchi Wang
Chinese Academy of Sciences
Jintai Wu
Nanjing University
Jinjin Xie
Chinese Academy of Sciences
Meng-Zhe Yang
National Tsing Hua University
Hsi-Wei Yen
Academia Sinica
Hyunju Yoo
Korea Astronomy and Space Science Institute
Jinghua Yuan
Chinese Academy of Sciences
Hyeong-Sik Yun
Kyung Hee University
Tetsuya Zenko
Kyoto University
Chuan-Peng Zhang
Chinese Academy of Sciences
Yapeng Zhang
Beijing Normal University
Guoyin Zhang
Chinese Academy of Sciences
Jianjun Zhou
Chinese Academy of Sciences
Lei Zhu
Chinese Academy of Sciences
Ilse de Looze
University College London (UCL)
Philippe Andre
Paris Diderot University
C. Darren Dowell
Jet Propulsion Laboratory, California Institute of Technology
Stewart Eyres
University of South Wales
Sam Falle
University of Leeds
Jean-Francois Robitaille
Grenoble Alpes University
Sven van Loo
University of Leeds
Astrophysical Journal
0004-637X (ISSN) 1538-4357 (eISSN)
Vol. 941 2 122Subject Categories
Astronomy, Astrophysics and Cosmology
Fusion, Plasma and Space Physics
Condensed Matter Physics
DOI
10.3847/1538-4357/ac9dfb