The JCMT BISTRO Survey: An 850/450 mu m Polarization Study of NGC 2071IR in Orion B
Journal article, 2021
We present the results of simultaneous 450 mu m and 850 mu m polarization observations toward the massive star-forming region NGC 2071IR, a target of the BISTRO (B-fields in STar-forming Region Observations) Survey, using the POL-2 polarimeter and SCUBA-2 camera mounted on the James Clerk Maxwell Telescope. We find a pinched magnetic field morphology in the central dense core region, which could be due to a rotating toroidal disklike structure and a bipolar outflow originating from the central young stellar object IRS 3. Using the modified Davis-Chandrasekhar-Fermi method, we obtain a plane-of-sky magnetic field strength of 563 +/- 421 mu G in the central similar to 0.12 pc region from 850 mu m polarization data. The corresponding magnetic energy density of 2.04 x 10(-8) erg cm(-3) is comparable to the turbulent and gravitational energy densities in the region. We find that the magnetic field direction is very well aligned with the whole of the IRS 3 bipolar outflow structure. We find that the median value of polarization fractions is 3.0% at 450 mu m in the central 3 ' region, which is larger than the median value of 1.2% at 850 mu m. The trend could be due to the better alignment of warmer dust in the strong radiation environment. We also find that polarization fractions decrease with intensity at both wavelengths, with slopes, determined by fitting a Rician noise model of 0.59 +/- 0.03 at 450 mu m and 0.36 +/- 0.04 at 850 mu m, respectively. We think that the shallow slope at 850 mu m is due to grain alignment at the center being assisted by strong radiation from the central young stellar objects.
Author
A-Ran Lyo
Korea Astronomy and Space Science Institute
Jongsoo Kim
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Sarah Sadavoy
Queen's University
Doug Johnstone
National Research Council Canada
University of Victoria
David Berry
East Asian Observatory
Kate Pattle
National University of Ireland Galway
Woojin Kwon
Seoul National University
Pierre Bastien
Université de Montréal
Takashi Onaka
Meisei University
University of Tokyo
James Di Francesco
University of Victoria
National Research Council Canada
Ji-Hyun Kang
Korea Astronomy and Space Science Institute
Ray Furuya
Tokushima University
Charles L. H. Hull
National Astronomical Observatory of Japan
Atacama Large Millimeter-submillimeter Array (ALMA)
University of Leeds
Motohide Tamura
National Institutes of Natural Sciences
University of Tokyo
Patrick M. Koch
Academia Sinica
Derek Ward-Thompson
University of Central Lancashire
Tetsuo Hasegawa
National Institutes of Natural Sciences
Thiem Hoang
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Doris Arzoumanian
Nagoya University
University of Porto
Chang Won Lee
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Chin-Fei Lee
Academia Sinica
Do-Young Byun
Korea Astronomy and Space Science Institute
Florian Kirchschlager
University College London (UCL)
Yasuo Doi
University of Tokyo
Kee-Tae Kim
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Jihye Hwang
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Pham Ngoc Diep
Vietnam Academy of Science and Technology
Lapo Fanciullo
Academia Sinica
Sang-Sung Lee
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Geumsook Park
Korea Astronomy and Space Science Institute
Hyunju Yoo
Korea Astronomy and Space Science Institute
Eun Jung Chung
Chungnam National University
Anthony Whitworth
Cardiff University
Steve Mairs
East Asian Observatory
Archana Soam
National Aeronautics and Space Administration (NASA)
Tie Liu
Chinese Academy of Sciences
Xindi Tang
Chinese Academy of Sciences
Simon Coude
National Aeronautics and Space Administration (NASA)
Philippe Andre
Paris Diderot University
Tyler L. Bourke
University of Manchester
SKA Organisation
Huei-Ru Vivien Chen
Academia Sinica
National Tsing Hua University
Zhiwei Chen
Chinese Academy of Sciences
Wen Ping Chen
National Central University
Mike Chen
University of Victoria
Tao-Chung Ching
Chinese Academy of Sciences
Jungyeon Cho
Chungnam National University
Minho Choi
Korea Astronomy and Space Science Institute
Yunhee Choi
Korea Astronomy and Space Science Institute
Antonio Chrysostomou
SKA Organisation
Sophia Dai
Chinese Academy of Sciences
C. Darren Dowell
California Institute of Technology (Caltech)
Hao-Yuan Duan
National Tsing Hua University
Yan Duan
Chinese Academy of Sciences
David Eden
Liverpool John Moores University
Chakali Eswaraiah
Chinese Academy of Sciences
Stewart Eyres
University of South Wales
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 University of Hong Kong
Ilseung Han
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Jannifer Hatchell
University of Exeter
Saeko Hayashi
National Astronomical Observatory of Japan
Martin Houde
Western University
Tsuyoshi Inoue
Nagoya University
Shu-ichiro Inutsuka
Nagoya University
Kazunari Iwasaki
Nagoya University
Il-Gyo Jeong
Doshisha University
Miju Kang
Korea Astronomy and Space Science Institute
Akimasa Kataoka
Kyungpook National University
Koji Kawabata
Hiroshima University
National Institutes of Natural Sciences
Francisca Kemper
Hiroshima University
Academia Sinica
Gwanjeong Kim
European Southern Observatory Santiago
Mi-Ryang Kim
Korea Astronomy and Space Science Institute
Shinyoung Kim
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Kyoung Hee Kim
Korea Astronomy and Space Science Institute
Jason Kirk
University of Central Lancashire
Masato I. N. Kobayashi
National Institutes of Natural Sciences
Vera Konyves
University of Central Lancashire
Takayoshi Kusune
National Institutes of Natural Sciences
Jungmi Kwon
University of Tokyo
Kevin Lacaille
McMaster University
Tohoku University
Shih-Ping Lai
National Tsing Hua University
Academia Sinica
Chi Yan Law
Chinese University of Hong Kong
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
Jeong-Eun Lee
Kyung Hee University
Yong-Hee Lee
Kyung Hee University
Hyeseung Lee
Korea Astronomy and Space Science Institute
Dalei Li
Kyung Hee University
Di Li
Chinese Academy of Sciences
Hua-Bai Li
Chinese University of Hong Kong
Hong-Li Liu
Chinese Academy of Sciences
Junhao Liu
Nanjing University
Yunnan University
Sheng-Yuan Liu
Academia Sinica
Xing Lu
National Institutes of Natural Sciences
Masafumi Matsumura
Nanjing University
Brenda Matthews
National Research Council Canada
University of Victoria
Gerald Moriarty-Schieven
National Research Council Canada
Tetsuya Nagata
Kagawa University
Fumitaka Nakamura
Kyoto University
National Astronomical Observatory of Japan
Hiroyuki Nakanishi
The Graduate University for Advanced Studies (SOKENDAI)
Nguyen Bich Ngoc
Vietnam Academy of Science and Technology
Nagayoshi Ohashi
Academia Sinica
Harriet Parsons
East Asian Observatory
Nicolas Peretto
Cardiff University
Felix Priestley
Cardiff University
Tae-soo Pyo
National Astronomical Observatory of Japan
Lei Qian
Chinese Academy of Sciences
Keping Qiu
Yunnan University
Nanjing University
Ramprasad Rao
Academia Sinica
Jonathan Rawlings
University College London (UCL)
Mark G. Rawlings
East Asian Observatory
Brendan Retter
Cardiff University
John Richer
University of Cambridge
Kagoshima University
Andrew Rigby
Cardiff University
Hiro Saito
University of Cambridge
Giorgio Savini
University of Tsukuba
Anna Scaife
University of Manchester
Masumichi Seta
University College London (UCL)
Yoshito Shimajiri
Kwansei Gakuin University
Hiroko Shinnaga
The Graduate University for Advanced Studies (SOKENDAI)
Mehrnoosh Tahani
National Institutes of Natural Sciences
Ya-Wen Tang
Academia Sinica
Kohji Tomisaka
Kyungpook National University
National Astronomical Observatory of Japan
Le Ngoc Tram
National Research Council Canada
Yusuke Tsukamoto
The Graduate University for Advanced Studies (SOKENDAI)
Serena Viti
Vietnam Academy of Science and Technology
Jia-Wei Wang
Academia Sinica
Hongchi Wang
Chinese Academy of Sciences
Jinjin Xie
Chinese Academy of Sciences
Hsi-Wei Yen
Academia Sinica
Jinghua Yuan
Chinese Academy of Sciences
Hyeong-Sik Yun
Kyung Hee University
Tetsuya Zenko
Kagawa University
Guoyin Zhang
Chinese Academy of Sciences
Chuan-Peng Zhang
Chinese Academy of Sciences
Yapeng Zhang
University College London (UCL)
Jianjun Zhou
Kyung Hee University
Lei Zhu
Chinese Academy of Sciences
Ilse de Looze
Vietnam Academy of Science and Technology
Sam Falle
Beijing Normal University
Jean-Francois Robitaille
University of Leeds
Sven van Loo
Grenoble Alpes University
Astrophysical Journal
0004-637X (ISSN) 1538-4357 (eISSN)
Vol. 918 2 85Subject Categories (SSIF 2011)
Astronomy, Astrophysics and Cosmology
Other Physics Topics
Fusion, Plasma and Space Physics
DOI
10.3847/1538-4357/ac0ce9