The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43
Journal article, 2023
We present observations of polarized dust emission at 850 mu m from the L43 molecular cloud, which sits in the Ophiuchus cloud complex. The data were taken using SCUBA-2/POL-2 on the James Clerk Maxwell Telescope as a part of the BISTRO large program. L43 is a dense (N-H2 similar to 10(22) - 10(23) cm(-2)) complex molecular cloud with a submillimeter-bright starless core and two protostellar sources. There appears to be an evolutionary gradient along the isolated filament that L43 is embedded within, with the most evolved source closest to the Sco OB2 association. One of the protostars drives a CO outflow that has created a cavity to the southeast. We see a magnetic field that appears to be aligned with the cavity walls of the outflow, suggesting interaction with the outflow. We also find a magnetic field strength of up to similar to 160 +/- 30 mu G in the main starless core and up to similar to 90 +/- 40 mu G in the more diffuse, extended region. These field strengths give magnetically super- and subcritical values, respectively, and both are found to be roughly trans-Alfvenic. We also present a new method of data reduction for these denser but fainter objects like starless cores.
Author
Janik Karoly
University of Central Lancashire
Derek Ward-Thompson
University of Central Lancashire
Kate Pattle
University College London (UCL)
David Berry
East Asian Observatory
Anthony Whitworth
Cardiff University
Jason Kirk
University of Central Lancashire
Pierre Bastien
Université de Montréal
Tao-Chung Ching
National Radio Astronomy Observatory Socorro
Simon Coude
Harvard-Smithsonian Center for Astrophysics
Worcester State University
Jihye Hwang
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Woojin Kwon
Seoul National University
Archana Soam
Indian Institute of Astrophysics
Jia-Wei Wang
Academia Sinica
Tetsuo Hasegawa
National Institutes of Natural Sciences
Shih-Ping Lai
Academia Sinica
National Tsing Hua University
Keping Qiu
Nanjing University
Doris Arzoumanian
National Astronomical Observatory of Japan
Tyler L. Bourke
University of Manchester
Square Kilometre Array, UK
Do-Young Byun
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Huei-Ru Vivien Chen
National Tsing Hua University
Academia Sinica
Wen Ping Chen
National Central University
Mike Chen
University of Victoria
Zhiwei Chen
Chinese Academy of Sciences
Jungyeon Cho
Chungnam National University
Minho Choi
Korea Astronomy and Space Science Institute
Youngwoo Choi
Seoul National University
Yunhee Choi
Korea Astronomy and Space Science Institute
Antonio Chrysostomou
Square Kilometre Array, UK
Eun Jung Chung
Chungnam National University
Sophia Dai
Chinese Academy of Sciences
Victor Debattista
University of Central Lancashire
James Di Francesco
University of Victoria
National Research Council Canada
Pham Ngoc Diep
Vietnam Academy of Science and Technology
Yasuo Doi
University of Tokyo
Hao-Yuan Duan
National Tsing Hua University
Yan Duan
Chinese Academy of Sciences
Chakali Eswaraiah
Indian Institute of Science Education & Research (IISER)
Lapo Fanciullo
National Chung Hsing University
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
Ray Furuya
Tokushima University
Tim Gledhill
University of Hertfordshire
Sarah Graves
East Asian Observatory
Jane Greaves
Cardiff University
Matt Griffin
Cardiff University
Ilseung Han
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Thiem Hoang
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Martin Houde
Chinese Academy of Sciences
Western University
Charles L. H. Hull
Atacama Large Millimeter-submillimeter Array (ALMA)
National Astronomical Observatory of Japan
Tsuyoshi Inoue
Konan University
Shu-ichiro Inutsuka
Nagoya University
Kazunari Iwasaki
Doshisha University
Il-Gyo Jeong
Kyungpook National University
Korea Astronomy and Space Science Institute
Doug Johnstone
University of Victoria
National Research Council Canada
Vera Koenyves
University of Central Lancashire
Ji-hyun Kang
Korea Astronomy and Space Science Institute
Miju Kang
Korea Astronomy and Space Science Institute
Akimasa Kataoka
National Astronomical Observatory of Japan
Koji Kawabata
Hiroshima University
Francisca Kemper
Spanish National Research Council (CSIC)
Catalan Institution for Research and Advanced Studies
Institute of Space Studies of Catalonia (IEEC)
Jongsoo Kim
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Shinyoung Kim
Korea Astronomy and Space Science Institute
Gwanjeong Kim
National Institutes of Natural Sciences
Kyoung Hee Kim
Korea Astronomy and Space Science Institute
Mi-Ryang Kim
Kyung Hee University
Kee-Tae Kim
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Hyosung Kim
Seoul National University
Florian Kirchschlager
Université de Montréal
Tohoku University
Masato I. N. Kobayashi
National Astronomical Observatory of Japan
Patrick M. Koch
Academia Sinica
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
Chang Won Lee
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Hyeseung Lee
Chungnam National University
Yong-Hee Lee
East Asian Observatory
Kyung Hee University
Chin-Fei Lee
Academia Sinica
Jeong-Eun Lee
Kyung Hee University
Sang-Sung Lee
University of Science and Technology (UST)
Korea Astronomy and Space Science Institute
Dalei Li
Chinese Academy of Sciences
Di Li
Chinese Academy of Sciences
Guangxing Li
Yunnan University
Hua-bai Li
Chinese University of Hong Kong
Sheng-Jun Lin
National Tsing Hua University
Hong-Li Liu
Yunnan University
Tie Liu
Chinese Academy of Sciences
Sheng-Yuan Liu
Academia Sinica
Junhao Liu
East Asian Observatory
Steven Longmore
Liverpool John Moores University
A-Ran Lyo
Korea Astronomy and Space Science Institute
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 Astronomical Observatory of Japan
Hiroyuki Nakanishi
Kagoshima University
Nguyen Bich Ngoc
Vietnam Academy of Science and Technology
Nagayoshi Ohashi
Academia Sinica
Takashi Onaka
Meisei University
University of Tokyo
Geumsook Park
Korea Astronomy and Space Science Institute
Harriet Parsons
East Asian Observatory
Nicolas Peretto
Cardiff University
Felix Priestley
Cardiff University
Tae-Soo Pyo
National Astronomical Observatory of Japan
The Graduate University for Advanced Studies (SOKENDAI)
Lei Qian
Chinese Academy of Sciences
Ramprasad Rao
Academia Sinica
Jonathan Rawlings
University College London (UCL)
Mark Rawlings
East Asian Observatory
Gemini Observatory North
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
Ekta Sharma
Chinese Academy of Sciences
Yoshito Shimajiri
Kyushu Kyoritsu Univ
Hiroko Shinnaga
Kagoshima University
Mehrnoosh Tahani
Stanford University
Motohide Tamura
National Institutes of Natural Sciences
University of Tokyo
Ya-Wen Tang
Academia Sinica
Xindi Tang
Chinese Academy of Sciences
Kohji Tomisaka
National Astronomical Observatory of Japan
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
Chungnam National University
Jinghua Yuan
Chinese Academy of Sciences
Hyeong-Sik Yun
Korea Astronomy and Space Science Institute
Tetsuya Zenko
Kyoto University
Guoyin Zhang
Chinese Academy of Sciences
Yapeng Zhang
Beijing Normal University
Chuan-Peng 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 Cité University
C. Darren Dowell
Jet Propulsion Laboratory, California Institute of Technology
David Eden
Armagh Observatory and Planetarium
Stewart Eyres
University of South Wales
Sam Falle
University of Leeds
Valentin J. M. Le Gouellec
NASA Ames Research Center
Frederick Poidevin
University of La Laguna
Instituto de Astrofísica de Canarias
Jean-Francois Robitaille
Grenoble Alpes University
Sven van Loo
University of Leeds
Astrophysical Journal
0004-637X (ISSN) 1538-4357 (eISSN)
Vol. 952 1 29Subject Categories
Astronomy, Astrophysics and Cosmology
Atom and Molecular Physics and Optics
DOI
10.3847/1538-4357/acd6f2