A Tale of Three: Magnetic Fields along the Orion Integral-shaped Filament as Revealed by the JCMT BISTRO Survey
Journal article, 2024
As part of the B-fields In Star-forming Region Observations survey, we present James Clerk Maxwell Telescope (JCMT) 850 μm polarimetric observations toward the Orion integral-shaped filament (ISF) that covers three portions known as OMC-1, OMC-2, and OMC-3. The magnetic field threading the ISF seen in the JCMT POL-2 map appears as a tale of three: pinched for OMC-1, twisted for OMC-2, and nearly uniform for OMC-3. A multiscale analysis shows that the magnetic field structure in OMC-3 is very consistent at all the scales, whereas the field structure in OMC-2 shows no correlation across different scales. In OMC-1, the field retains its mean orientation from large to small scales but shows some deviations at small scales. Histograms of relative orientations between the magnetic field and filaments reveal a bimodal distribution for OMC-1, a relatively random distribution for OMC-2, and a distribution with a predominant peak at 90o for OMC-3. Furthermore, the magnetic fields in OMC-1 and OMC-3 both appear to be aligned perpendicular to the fibers, which are denser structures within the filament, but the field in OMC-2 is aligned along with the fibers. All these suggest that gravity, turbulence, and magnetic field are each playing a leading role in OMC-1, 2, and 3, respectively. While OMC-2 and 3 have almost the same gas mass, density, and nonthermal velocity dispersion, there are on average younger and fewer young stellar objects in OMC-3, providing evidence that a stronger magnetic field will induce slower and less efficient star formation in molecular clouds.
Polarimetry
Star Formation
Magnetic Field
Author
Jintai Wu
Nanjing University
Keping Qiu
Nanjing University
Frédérick Poidevin
Instituto de Astrofísica de Canarias
Pierre Bastien
Université de Montréal
Junhao Liu
National Astronomical Observatory of Japan
Tao-Chung Ching
National Radio Astronomy Observatory Socorro
T. L. Bourke
SKA Organisation
D. Ward-Thompson
University of Central Lancashire
Kate Pattle
University College London (UCL)
D. Johnstone
National Research Council Canada
Patrick M. Koch
Academia Sinica
Doris Arzoumanian
National Astronomical Observatory of Japan
Chang Won Lee
Korea Astronomy and Space Science Institute
Lapo Fanciullo
National Chung Hsing University
Takashi Onaka
University of Tokyo
Jihye Hwang
Korea Astronomy and Space Science Institute
Valentin J. M. Le Gouellec
National Aeronautics and Space Administration (NASA)
Archana Soam
Indian Institute of Astrophysics
Motohide Tamura
University of Tokyo
M. Tahani
Kavli Institute for Particle Astrophysics and Cosmology
Chakali Eswaraiah
Indian Institute of Science Education and Research (IISER), Tirupati
Hua-Bai Li
Chinese University of Hong Kong
David Berry
East Asian Observatory
Ray S. Furuya
Tokushima University
Simon Coudé
Worcester State University
Harvard-Smithsonian Center for Astrophysics
Woojin Kwon
Seoul National University
Sheng-Jun Lin
Academia Sinica
Jia-Wei Wang
Academia Sinica
Tetsuo Hasegawa
National Astronomical Observatory of Japan
Shih-Ping Lai
Academia Sinica
Do Young Byun
Korea Astronomy and Space Science Institute
Zhiwei Chen
Chinese Academy of Sciences
Huei-Ru Vivien Chen
Academia Sinica
Wen Ping Chen
National Central University
Michael Chun-Yuan Chen
University of Victoria
Jungyeon Cho
Chungnam National University
Youngwoo Choi
Seoul National University
Yunhee Choi
Korea Astronomy and Space Science Institute
Minho Choi
Korea Astronomy and Space Science Institute
A. Chrysostomou
SKA Organisation
Eun Jung Chung
Korea Astronomy and Space Science Institute
Sophia Dai
Chinese Academy of Sciences
J. Di Francesco
National Research Council Canada
Pham Ngoc Diep
Vietnam Academy of Science and Technology
Yasuo Doi
University of Tokyo
Hao-Yuan Duan
Taipei Astronomical Museum
Yan Duan
Chinese Academy of Sciences
D. J. Eden
Armagh Observatory and Planetarium
J. Fiege
University of Manitoba
Laura M. Fissel
Queen's University
Erica Franzmann
University of Manitoba
P. Friberg
East Asian Observatory
R. Friesen
National Radio Astronomy Observatory
G. A. Fuller
University of Manchester
T. Gledhill
University of Hertfordshire
Sarah F. Graves
East Asian Observatory
J. S. Greaves
Cardiff University
Matt Griffin
Cardiff University
Qilao Gu
Chinese Academy of Sciences
Ilseung Han
Korea Astronomy and Space Science Institute
Saeko Hayashi
University of Tokyo
Thiem Hoang
Korea Astronomy and Space Science Institute
D. Johnstone
Western University
Tsuyoshi Inoue
Konan University
Shu-Ichiro Inutsuka
Nagoya University
Kazunari Iwasaki
National Astronomical Observatory of Japan
Il-Gyo Jeong
Korea Astronomy and Space Science Institute
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 College London (UCL)
Akimasa Kataoka
National Astronomical Observatory of Japan
Koji Kawabata
Hiroshima University
Shinyoung Kim
Korea Astronomy and Space Science Institute
Mi-Ryang Kim
Kyung Hee University
Kyoung Hee Kim
Ulsan National Institute of Science and Technology (UNIST)
Kee-Tae Kim
Korea Astronomy and Space Science Institute
Jongsoo Kim
Korea Astronomy and Space Science Institute
Hyosung Kim
Seoul National University
Gwanjeong Kim
National Astronomical Observatory of Japan
F. Kirchschlager
Ghent university
J. Kirk
University of Central Lancashire
Masato I. N. Kobayashi
University of Cologne
Takayoshi Kusune
Tohoku University
Jungmi Kwon
University of Tokyo
Kevin Lacaille
McMaster University
Chi Yan Law
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
Chinese University of Hong Kong
Hyeseung Lee
Ulsan National Institute of Science and Technology (UNIST)
Chin-Fei Lee
Academia Sinica
Sang Sung Lee
Korea Astronomy and Space Science Institute
Jeong-Eun Lee
Seoul National University
Dalei Li
Xinjiang Astronomical Observatory
Di Li
Chinese Academy of Sciences
Guangxing Li
Yunnan University
Sheng-Yuan Liu
Academia Sinica
Tie Liu
Chinese Academy of Sciences
Hong-Li Liu
Yunnan University
X. Lu
Chinese Academy of Sciences
A. Lyo
Korea Astronomy and Space Science Institute
Steve Mairs
East Asian Observatory
Masafumi Matsumura
Kagawa University
B. C. Matthews
National Research Council Canada
Gerald H. Moriarty-Schieven
National Research Council Canada
Tetsuya Nagata
Graduate School of Science
Fumitaka Nakamura
National Astronomical Observatory of Japan
Hiroyuki Nakanishi
Kagoshima University
Nguyen Bich Ngoc
Vietnam Academy of Science and Technology
Nagayoshi Ohashi
Academia Sinica
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)
Lei Qian
Chinese Academy of Sciences
R. Rao
Academia Sinica
J. M.C. Rawlings
University College London (UCL)
M.G. Rawlings
East Asian Observatory
Brendan Retter
Cardiff University
J. Richer
University of Cambridge
Andrew Rigby
Cardiff University
S. I. Sadavoy
Queen's University
Hiro Saito
University of Tsukuba
G. Savini
University College London (UCL)
Masumichi Seta
Kwansei Gakuin University
Ekta Sharma
Chinese Academy of Sciences
Yoshito Shimajiri
Kyushu Kyoritsu Univ
H. Shinnaga
Kagoshima University
Ya-Wen Tang
Academia Sinica
X. D. Tang
Xinjiang Astronomical Observatory
Hoang Duc Thuong
College of Science and Engineering
Kohji Tomisaka
National Astronomical Observatory of Japan
Le Ngoc Tram
Leiden University
Yusuke Tsukamoto
Kagoshima University
Serena Viti
University College London (UCL)
Hongchi Wang
Chinese Academy of Sciences
Anthony Whitworth
Cardiff University
Jinjin Xie
Chinese Academy of Sciences
Meng-Zhe Yang
National Tsing Hua University
Hsi-Wei Yen
Academia Sinica
Hyunju Yoo
Chungnam National University
Jinghua Yuan
Chinese Academy of Sciences
Hyeong-Sik Yun
Korea Astronomy and Space Science Institute
Tetsuya Zenko
Graduate School of Science
Guoyin Zhang
Chinese Academy of Sciences
Chuan-Peng Zhang
Chinese Academy of Sciences
Yapeng Zhang
Beijing Normal University
Jianjun Zhou
Xinjiang Astronomical Observatory
Lei Zhu
Chinese Academy of Sciences
I. De Looze
Ghent university
Philippe André
Institut de Recherche sur les Lois Fondamentales de l'Univers
C. D. Dowell
California Institute of Technology (Caltech)
S. Eyres
University of South Wales
S. Eyres
University of Leeds
Jean-François Robitaille
Institut de Planétologie et d’Astrophysique de Grenoble (IPAG)
Sven Van Loo
University of Leeds
Astrophysical Journal Letters
2041-8205 (ISSN) 2041-8213 (eISSN)
Vol. 977 2Subject Categories (SSIF 2025)
Fusion, Plasma and Space Physics
Astronomy, Astrophysics, and Cosmology
DOI
10.3847/2041-8213/ad93d2