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 29

Subject Categories

Astronomy, Astrophysics and Cosmology

Atom and Molecular Physics and Optics

DOI

10.3847/1538-4357/acd6f2

More information

Latest update

9/6/2023 9