The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament

Tao Chung Ching; Keping Qiu; Di Li; Zhiyuan Ren; Shih Ping Lai; David Berry; Kate Pattle; Ray Furuya; Derek Ward-Thompson; Doug Johnstone; Patrick M. Koch; Chang Won Lee; Thiem Hoang; Tetsuo Hasegawa; Woojin Kwon; Pierre Bastien; Chakali Eswaraiah; Jia Wei Wang; Kyoung Hee Kim; Jihye Hwang; Archana Soam; A. Ran Lyo; Junhao Liu; Valentin J.M. Le Gouellec; Doris Arzoumanian; Anthony Whitworth; James Di Francesco; Frédérick Poidevin; Tie Liu; Simon Coudé; Mehrnoosh Tahani; Hong Li Liu; Takashi Onaka; Dalei Li; Motohide Tamura; Zhiwei Chen; Xindi Tang; Florian Kirchschlager; Tyler L. Bourke; Do Young Byun; Mike Chen; Huei Ru Vivien Chen; Wen Ping Chen; Jungyeon Cho; Yunhee Choi; Youngwoo Choi; Minho Choi; Antonio Chrysostomou; Eun Jung Chung; Y. Sophia Dai; Pham Ngoc Diep; Yasuo Doi; Yan Duan; Hao Yuan Duan; David Eden; Lapo Fanciullo; Jason Fiege; Laura M. Fissel; Erica Franzmann; Per Friberg; Rachel Friesen; Gary Fuller; Tim Gledhill; Sarah Graves; Jane Greaves; Matt Griffin; Qilao Gu; Ilseung Han; Saeko Hayashi; Martin Houde; Charles L.H. Hull; Tsuyoshi Inoue; Shu Ichiro Inutsuka; Kazunari Iwasaki; Il Gyo Jeong; Vera Könyves; Ji Hyun Kang; Miju Kang; Janik Karoly; Akimasa Kataoka; Koji Kawabata; Francisca Kemper; Jongsoo Kim; Mi Ryang Kim; Shinyoung Kim; Hyosung Kim; Kee Tae Kim; Gwanjeong Kim; Jason Kirk; Masato I.N. Kobayashi; Takayoshi Kusune; Jungmi Kwon; Kevin Lacaille; Chi Yan Law; Sang Sung Lee; Hyeseung Lee; Jeong Eun Lee; Chin Fei Lee; Yong Hee Lee; Guangxing Li; Hua Bai Li; Sheng Jun Lin; Sheng Yuan Liu; Xing Lu; Steve Mairs; Masafumi Matsumura; Brenda Matthews; Gerald Moriarty-Schieven; Tetsuya Nagata; Fumitaka Nakamura; Hiroyuki Nakanishi; Nguyen Bich Ngoc; Nagayoshi Ohashi; Geumsook Park; Harriet Parsons; Nicolas Peretto; Felix Priestley; Tae Soo Pyo; Lei Qian; Ramprasad Rao; Mark Rawlings; Jonathan Rawlings; Brendan Retter; John Richer; Andrew Rigby; Sarah Sadavoy; Hiro Saito; Giorgio Savini; Masumichi Seta; Yoshito Shimajiri; Hiroko Shinnaga; Ya Wen Tang; Kohji Tomisaka; Le Ngoc Tram; Yusuke Tsukamoto; Serena Viti; Hongchi Wang; Jintai Wu; Jinjin Xie; Meng Zhe Yang; Hsi Wei Yen; Hyunju Yoo; Jinghua Yuan; Hyeong Sik Yun; Tetsuya Zenko; Chuan Peng Zhang; Yapeng Zhang; Guoyin Zhang; Jianjun Zhou; Lei Zhu; Ilse De Looze; Philippe André; C. Darren Dowell; Stewart Eyres; Sam Falle; Jean François Robitaille; Sven Van Loo

doi:10.3847/1538-4357/ac9dfb

The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament

Tao Chung Ching
, Keping Qiu
, Di Li
, Zhiyuan Ren
, Shih Ping Lai
, David Berry
, Kate Pattle
, Ray Furuya
, Derek Ward-Thompson
, Doug Johnstone
, Patrick M. Koch
, Chang Won Lee
, Thiem Hoang
, Tetsuo Hasegawa
, Woojin Kwon
, Pierre Bastien
, Chakali Eswaraiah
, Jia Wei Wang
, Kyoung Hee Kim
, Jihye Hwang

Archana Soam, A. Ran Lyo, Junhao Liu, Valentin J.M. Le Gouellec, Doris Arzoumanian, Anthony Whitworth, James Di Francesco, Frédérick Poidevin, Tie Liu, Simon Coudé, Mehrnoosh Tahani, Hong Li Liu, Takashi Onaka, Dalei Li, Motohide Tamura, Zhiwei Chen, Xindi Tang, Florian Kirchschlager, Tyler L. Bourke, Do Young Byun, Mike Chen, Huei Ru Vivien Chen, Wen Ping Chen, Jungyeon Cho, Yunhee Choi, Youngwoo Choi, Minho Choi, Antonio Chrysostomou, Eun Jung Chung, Y. Sophia Dai, Pham Ngoc Diep, Yasuo Doi, Yan Duan, Hao Yuan Duan, David Eden, Lapo Fanciullo, Jason Fiege, Laura M. Fissel, Erica Franzmann, Per Friberg, Rachel Friesen, Gary Fuller, Tim Gledhill, Sarah Graves, Jane Greaves, Matt Griffin, Qilao Gu, Ilseung Han, Saeko Hayashi, Martin Houde, Charles L.H. Hull, Tsuyoshi Inoue, Shu Ichiro Inutsuka, Kazunari Iwasaki, Il Gyo Jeong, Vera Könyves, Ji Hyun Kang, Miju Kang, Janik Karoly, Akimasa Kataoka, Koji Kawabata, Francisca Kemper, Jongsoo Kim, Mi Ryang Kim, Shinyoung Kim, Hyosung Kim, Kee Tae Kim, Gwanjeong Kim, Jason Kirk, Masato I.N. Kobayashi, Takayoshi Kusune, Jungmi Kwon, Kevin Lacaille, Chi Yan Law, Sang Sung Lee, Hyeseung Lee, Jeong Eun Lee, Chin Fei Lee, Yong Hee Lee, Guangxing Li, Hua Bai Li, Sheng Jun Lin, Sheng Yuan Liu, Xing Lu, Steve Mairs, Masafumi Matsumura, Brenda Matthews, Gerald Moriarty-Schieven, Tetsuya Nagata, Fumitaka Nakamura, Hiroyuki Nakanishi, Nguyen Bich Ngoc, Nagayoshi Ohashi, Geumsook Park, Harriet Parsons, Nicolas Peretto, Felix Priestley, Tae Soo Pyo, Lei Qian, Ramprasad Rao, Mark Rawlings, Jonathan Rawlings, Brendan Retter, John Richer, Andrew Rigby, Sarah Sadavoy, Hiro Saito, Giorgio Savini, Masumichi Seta, Yoshito Shimajiri, Hiroko Shinnaga, Ya Wen Tang, Kohji Tomisaka, Le Ngoc Tram, Yusuke Tsukamoto, Serena Viti, Hongchi Wang, Jintai Wu, Jinjin Xie, Meng Zhe Yang, Hsi Wei Yen, Hyunju Yoo, Jinghua Yuan, Hyeong Sik Yun, Tetsuya Zenko, Chuan Peng Zhang, Yapeng Zhang, Guoyin Zhang, Jianjun Zhou, Lei Zhu, Ilse De Looze, Philippe André, C. Darren Dowell, Stewart Eyres, Sam Falle, Jean François Robitaille, Sven Van Loo

Zhejiang Lab
National Astronomical Observatories Chinese Academy of Sciences
National Radio Astronomy Observatory Socorro
Nanjing University
University of Chinese Academy of Sciences
University of KwaZulu–Natal
National Tsing Hua University
Academia Sinica, Institute of Astronomy and Astrophysics
East Asian Observatory
University College London
Tokushima University
University of Central Lancashire
National Research Council Canada
University of Victoria
Korea Astronomy and Space Science Institute
Korea University of Science and Technology
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Seoul National University
Université de Montréal
Indian Institute of Science Education and Research (IISER) Tirupati
Ulsan National Institute of Science and Technology
Indian Institute of Astrophysics
Universities Space Research Association
Université Paris-Sud
Cardiff University
GTC Project
Universidad de la Laguna
Shanghai Astronomical Observatory Chinese Academy of Sciences
Worcester State University
Harvard & Smithsonian
Stanford University
Yunnan University
Meisei University
University of Tokyo
Xinjiang Astronomical Observatory
National Institutes of Natural Sciences - AstroBiology Center
Purple Mountain Observatory Chinese Academy of Sciences
SKA Organisation, UK
University of Manchester
National Central University
Chungnam National University
Vietnam Academy of Science and Technology
Armagh Observatory
National Chung Hsing University
University of Manitoba
Queen’s University
National Radio Astronomy Observatory
University of Hertfordshire
University of Western Ontario
Joint ALMA Observatory
NAOJ Fellow
Nagoya University
Doshisha University
Kyungpook National University (KNU)
Hiroshima University
Institut de Ciéncies de l’Espai (ICE-CSIC)
ICREA Catalan Institution for Research and Advanced Studies
PMT-UPC
Tohoku University
McMaster University, Faculty of Science
Dalhousie University
Chinese University of Hong Kong
Chalmers University of Technology
Kyung Hee University
Kagawa University
Graduate School of Science
The Graduate University for Advanced Studies
Kagoshima University
Chinese Academy of Sciences
NSF's National Optical-Infrared Astronomy Research Laboratory
Cavendish Laboratory
Institute of Astronomy
University of Tsukuba
Kwansei Gakuin University
University of Science and Technology of Hanoi (USTH)
Beijing Normal University
CEA Saclay
Jet Propulsion Laboratory
Glamorgan University
University of Leeds
Laboratoire Astrophysique de Grenoble

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

24 Citations (Scopus)

Abstract

We present 850 μm 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 ∼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.

Original language	English
Article number	122
Journal	Astrophysical Journal
Volume	941
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/ac9dfb
Publication status	Published - 1 Dec 2022
Externally published	Yes

Access to Document

10.3847/1538-4357/ac9dfb

Cite this

Ching, T. C., Qiu, K., Li, D., Ren, Z., Lai, S. P., Berry, D., Pattle, K., Furuya, R., Ward-Thompson, D., Johnstone, D., Koch, P. M., Lee, C. W., Hoang, T., Hasegawa, T., Kwon, W., Bastien, P., Eswaraiah, C., Wang, J. W., Kim, K. H., ... Van Loo, S. (2022). The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament. Astrophysical Journal, 941(2), Article 122. https://doi.org/10.3847/1538-4357/ac9dfb

@article{3537555755ff473d909116d2375050f4,

title = "The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament",

abstract = "We present 850 μm 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 ∼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 = "Ching, \{Tao Chung\} and Keping Qiu and Di Li and Zhiyuan Ren and Lai, \{Shih Ping\} and David Berry and Kate Pattle and Ray Furuya and Derek Ward-Thompson and Doug Johnstone and Koch, \{Patrick M.\} and Lee, \{Chang Won\} and Thiem Hoang and Tetsuo Hasegawa and Woojin Kwon and Pierre Bastien and Chakali Eswaraiah and Wang, \{Jia Wei\} and Kim, \{Kyoung Hee\} and Jihye Hwang and Archana Soam and Lyo, \{A. Ran\} and Junhao Liu and \{Le Gouellec\}, \{Valentin J.M.\} and Doris Arzoumanian and Anthony Whitworth and \{Di Francesco\}, James and Fr{\'e}d{\'e}rick Poidevin and Tie Liu and Simon Coud{\'e} and Mehrnoosh Tahani and Liu, \{Hong Li\} and Takashi Onaka and Dalei Li and Motohide Tamura and Zhiwei Chen and Xindi Tang and Florian Kirchschlager and Bourke, \{Tyler L.\} and Byun, \{Do Young\} and Mike Chen and Chen, \{Huei Ru Vivien\} and Chen, \{Wen Ping\} and Jungyeon Cho and Yunhee Choi and Youngwoo Choi and Minho Choi and Antonio Chrysostomou and Chung, \{Eun Jung\} and Dai, \{Y. Sophia\} and Diep, \{Pham Ngoc\} and Yasuo Doi and Yan Duan and Duan, \{Hao Yuan\} and David Eden and Lapo Fanciullo and Jason Fiege and Fissel, \{Laura M.\} and Erica Franzmann and Per Friberg and Rachel Friesen and Gary Fuller and Tim Gledhill and Sarah Graves and Jane Greaves and Matt Griffin and Qilao Gu and Ilseung Han and Saeko Hayashi and Martin Houde and Hull, \{Charles L.H.\} and Tsuyoshi Inoue and Inutsuka, \{Shu Ichiro\} and Kazunari Iwasaki and Jeong, \{Il Gyo\} and Vera K{\"o}nyves and Kang, \{Ji Hyun\} and Miju Kang and Janik Karoly and Akimasa Kataoka and Koji Kawabata and Francisca Kemper and Jongsoo Kim and Kim, \{Mi Ryang\} and Shinyoung Kim and Hyosung Kim and Kim, \{Kee Tae\} and Gwanjeong Kim and Jason Kirk and Kobayashi, \{Masato I.N.\} and Takayoshi Kusune and Jungmi Kwon and Kevin Lacaille and Law, \{Chi Yan\} and Lee, \{Sang Sung\} and Hyeseung Lee and Lee, \{Jeong Eun\} and Lee, \{Chin Fei\} and Lee, \{Yong Hee\} and Guangxing Li and Li, \{Hua Bai\} and Lin, \{Sheng Jun\} and Liu, \{Sheng Yuan\} and Xing Lu and Steve Mairs and Masafumi Matsumura and Brenda Matthews and Gerald Moriarty-Schieven and Tetsuya Nagata and Fumitaka Nakamura and Hiroyuki Nakanishi and Ngoc, \{Nguyen Bich\} and Nagayoshi Ohashi and Geumsook Park and Harriet Parsons and Nicolas Peretto and Felix Priestley and Pyo, \{Tae Soo\} and Lei Qian and Ramprasad Rao and Mark Rawlings and Jonathan Rawlings and Brendan Retter and John Richer and Andrew Rigby and Sarah Sadavoy and Hiro Saito and Giorgio Savini and Masumichi Seta and Yoshito Shimajiri and Hiroko Shinnaga and Tang, \{Ya Wen\} and Kohji Tomisaka and Tram, \{Le Ngoc\} and Yusuke Tsukamoto and Serena Viti and Hongchi Wang and Jintai Wu and Jinjin Xie and Yang, \{Meng Zhe\} and Yen, \{Hsi Wei\} and Hyunju Yoo and Jinghua Yuan and Yun, \{Hyeong Sik\} and Tetsuya Zenko and Zhang, \{Chuan Peng\} and Yapeng Zhang and Guoyin Zhang and Jianjun Zhou and Lei Zhu and \{De Looze\}, Ilse and Philippe Andr{\'e} and Dowell, \{C. Darren\} and Stewart Eyres and Sam Falle and Robitaille, \{Jean Fran{\c c}ois\} and \{Van Loo\}, Sven",

note = "Publisher Copyright: {\textcopyright} 2022. The Author(s). Published by the American Astronomical Society.",

year = "2022",

month = dec,

day = "1",

doi = "10.3847/1538-4357/ac9dfb",

language = "English",

volume = "941",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Ching, TC, Qiu, K, Li, D, Ren, Z, Lai, SP, Berry, D, Pattle, K, Furuya, R, Ward-Thompson, D, Johnstone, D, Koch, PM, Lee, CW, Hoang, T, Hasegawa, T, Kwon, W, Bastien, P, Eswaraiah, C, Wang, JW, Kim, KH, Hwang, J, Soam, A, Lyo, AR, Liu, J, Le Gouellec, VJM, Arzoumanian, D, Whitworth, A, Di Francesco, J, Poidevin, F, Liu, T, Coudé, S, Tahani, M, Liu, HL, Onaka, T, Li, D, Tamura, M, Chen, Z, Tang, X, Kirchschlager, F, Bourke, TL, Byun, DY, Chen, M, Chen, HRV, Chen, WP, Cho, J, Choi, Y, Choi, Y, Choi, M, Chrysostomou, A, Chung, EJ, Dai, YS, Diep, PN, Doi, Y, Duan, Y, Duan, HY, Eden, D, Fanciullo, L, Fiege, J, Fissel, LM, Franzmann, E, Friberg, P, Friesen, R, Fuller, G, Gledhill, T, Graves, S, Greaves, J, Griffin, M, Gu, Q, Han, I, Hayashi, S, Houde, M, Hull, CLH, Inoue, T, Inutsuka, SI, Iwasaki, K, Jeong, IG, Könyves, V, Kang, JH, Kang, M, Karoly, J, Kataoka, A, Kawabata, K, Kemper, F, Kim, J, Kim, MR, Kim, S, Kim, H, Kim, KT, Kim, G, Kirk, J, Kobayashi, MIN, Kusune, T, Kwon, J, Lacaille, K, Law, CY, Lee, SS, Lee, H, Lee, JE, Lee, CF, Lee, YH, Li, G, Li, HB, Lin, SJ, Liu, SY, Lu, X, Mairs, S, Matsumura, M, Matthews, B, Moriarty-Schieven, G, Nagata, T, Nakamura, F, Nakanishi, H, Ngoc, NB, Ohashi, N, Park, G, Parsons, H, Peretto, N, Priestley, F, Pyo, TS, Qian, L, Rao, R, Rawlings, M, Rawlings, J, Retter, B, Richer, J, Rigby, A, Sadavoy, S, Saito, H, Savini, G, Seta, M, Shimajiri, Y, Shinnaga, H, Tang, YW, Tomisaka, K, Tram, LN, Tsukamoto, Y, Viti, S, Wang, H, Wu, J, Xie, J, Yang, MZ, Yen, HW, Yoo, H, Yuan, J, Yun, HS, Zenko, T, Zhang, CP, Zhang, Y, Zhang, G, Zhou, J, Zhu, L, De Looze, I, André, P, Dowell, CD, Eyres, S, Falle, S, Robitaille, JF & Van Loo, S 2022, 'The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament', Astrophysical Journal, vol. 941, no. 2, 122. https://doi.org/10.3847/1538-4357/ac9dfb

TY - JOUR

T1 - The JCMT BISTRO-2 Survey

T2 - Magnetic Fields of the Massive DR21 Filament

AU - Ching, Tao Chung

AU - Qiu, Keping

AU - Li, Di

AU - Ren, Zhiyuan

AU - Lai, Shih Ping

AU - Berry, David

AU - Pattle, Kate

AU - Furuya, Ray

AU - Ward-Thompson, Derek

AU - Johnstone, Doug

AU - Koch, Patrick M.

AU - Lee, Chang Won

AU - Hoang, Thiem

AU - Hasegawa, Tetsuo

AU - Kwon, Woojin

AU - Bastien, Pierre

AU - Eswaraiah, Chakali

AU - Wang, Jia Wei

AU - Kim, Kyoung Hee

AU - Hwang, Jihye

AU - Soam, Archana

AU - Lyo, A. Ran

AU - Liu, Junhao

AU - Le Gouellec, Valentin J.M.

AU - Arzoumanian, Doris

AU - Whitworth, Anthony

AU - Di Francesco, James

AU - Poidevin, Frédérick

AU - Liu, Tie

AU - Coudé, Simon

AU - Tahani, Mehrnoosh

AU - Liu, Hong Li

AU - Onaka, Takashi

AU - Li, Dalei

AU - Tamura, Motohide

AU - Chen, Zhiwei

AU - Tang, Xindi

AU - Kirchschlager, Florian

AU - Bourke, Tyler L.

AU - Byun, Do Young

AU - Chen, Mike

AU - Chen, Huei Ru Vivien

AU - Chen, Wen Ping

AU - Cho, Jungyeon

AU - Choi, Yunhee

AU - Choi, Youngwoo

AU - Choi, Minho

AU - Chrysostomou, Antonio

AU - Chung, Eun Jung

AU - Dai, Y. Sophia

AU - Diep, Pham Ngoc

AU - Doi, Yasuo

AU - Duan, Yan

AU - Duan, Hao Yuan

AU - Eden, David

AU - Fanciullo, Lapo

AU - Fiege, Jason

AU - Fissel, Laura M.

AU - Franzmann, Erica

AU - Friberg, Per

AU - Friesen, Rachel

AU - Fuller, Gary

AU - Gledhill, Tim

AU - Graves, Sarah

AU - Greaves, Jane

AU - Griffin, Matt

AU - Gu, Qilao

AU - Han, Ilseung

AU - Hayashi, Saeko

AU - Houde, Martin

AU - Hull, Charles L.H.

AU - Inoue, Tsuyoshi

AU - Inutsuka, Shu Ichiro

AU - Iwasaki, Kazunari

AU - Jeong, Il Gyo

AU - Könyves, Vera

AU - Kang, Ji Hyun

AU - Kang, Miju

AU - Karoly, Janik

AU - Kataoka, Akimasa

AU - Kawabata, Koji

AU - Kemper, Francisca

AU - Kim, Jongsoo

AU - Kim, Mi Ryang

AU - Kim, Shinyoung

AU - Kim, Hyosung

AU - Kim, Kee Tae

AU - Kim, Gwanjeong

AU - Kirk, Jason

AU - Kobayashi, Masato I.N.

AU - Kusune, Takayoshi

AU - Kwon, Jungmi

AU - Lacaille, Kevin

AU - Law, Chi Yan

AU - Lee, Sang Sung

AU - Lee, Hyeseung

AU - Lee, Jeong Eun

AU - Lee, Chin Fei

AU - Lee, Yong Hee

AU - Li, Guangxing

AU - Li, Hua Bai

AU - Lin, Sheng Jun

AU - Liu, Sheng Yuan

AU - Lu, Xing

AU - Mairs, Steve

AU - Matsumura, Masafumi

AU - Matthews, Brenda

AU - Moriarty-Schieven, Gerald

AU - Nagata, Tetsuya

AU - Nakamura, Fumitaka

AU - Nakanishi, Hiroyuki

AU - Ngoc, Nguyen Bich

AU - Ohashi, Nagayoshi

AU - Park, Geumsook

AU - Parsons, Harriet

AU - Peretto, Nicolas

AU - Priestley, Felix

AU - Pyo, Tae Soo

AU - Qian, Lei

AU - Rao, Ramprasad

AU - Rawlings, Mark

AU - Rawlings, Jonathan

AU - Retter, Brendan

AU - Richer, John

AU - Rigby, Andrew

AU - Sadavoy, Sarah

AU - Saito, Hiro

AU - Savini, Giorgio

AU - Seta, Masumichi

AU - Shimajiri, Yoshito

AU - Shinnaga, Hiroko

AU - Tang, Ya Wen

AU - Tomisaka, Kohji

AU - Tram, Le Ngoc

AU - Tsukamoto, Yusuke

AU - Viti, Serena

AU - Wang, Hongchi

AU - Wu, Jintai

AU - Xie, Jinjin

AU - Yang, Meng Zhe

AU - Yen, Hsi Wei

AU - Yoo, Hyunju

AU - Yuan, Jinghua

AU - Yun, Hyeong Sik

AU - Zenko, Tetsuya

AU - Zhang, Chuan Peng

AU - Zhang, Yapeng

AU - Zhang, Guoyin

AU - Zhou, Jianjun

AU - Zhu, Lei

AU - De Looze, Ilse

AU - André, Philippe

AU - Dowell, C. Darren

AU - Eyres, Stewart

AU - Falle, Sam

AU - Robitaille, Jean François

AU - Van Loo, Sven

PY - 2022/12/1

Y1 - 2022/12/1

N2 - We present 850 μm 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 ∼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.

AB - We present 850 μm 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 ∼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.

UR - https://www.scopus.com/pages/publications/85145393150

U2 - 10.3847/1538-4357/ac9dfb

DO - 10.3847/1538-4357/ac9dfb

M3 - Article

AN - SCOPUS:85145393150

SN - 0004-637X

VL - 941

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 122

ER -

The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament

Abstract

Access to Document

Other files and links

Fingerprint

Cite this