The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43
Creators: name: Karoly, Janik
name: Ward-Thompson, Derek
name: Pattle, Kate
name: Berry, David
name: Whitworth, Anthony
name: Kirk, Jason
name: Bastien, Pierre
name: Ching, Tao-Chung
name: Coude, Simon
name: Hwang, Jihye
name: Kwon, Woojin
name: Soam, Archana
name: Wang, Jia-Wei
name: Hasegawa, Tetsuo
name: Lai, Shih-Ping
name: Qiu, Keping
name: Arzoumanian, Doris
name: Bourke, Tyler L.
name: Byun, Do-Young
name: Chen, Huei-Ru Vivien
name: Chen, Wen Ping
name: Chen, Mike
name: Chen, Zhiwei
name: Cho, Jungyeon
name: Choi, Minho
name: Choi, Youngwoo
name: Choi, Yunhee
name: Chrysostomou, Antonio
name: Chung, Eun Jung
name: Dai, Sophia
name: Debattista, Victor
name: Di Francesco, James
name: Diep, Pham Ngoc
name: Doi, Yasuo
name: Duan, Hao-Yuan
name: Duan, Yan
name: Eswaraiah, Chakali
name: Fanciullo, Lapo
name: Fiege, Jason
name: Fissel, Laura M.
name: Franzmann, Erica
name: Friberg, Per
name: Friesen, Rachel
name: Fuller, Gary
name: Furuya, Ray
name: Gledhill, Tim
name: Graves, Sarah
name: Greaves, Jane
name: Griffin, Matt
name: Gu, Qilao
name: Han, Ilseung
name: Hoang, Thiem
name: Houde, Martin
name: Hull, Charles L. H.
name: Inoue, Tsuyoshi
name: Inutsuka, Shu-ichiro
name: Iwasaki, Kazunari
name: Jeong, Il-Gyo
name: Johnstone, Doug
name: Konyves, Vera
name: Kang, Ji-hyun
name: Kang, Miju
name: Kataoka, Akimasa
name: Kawabata, Koji
name: Kemper, Francisca
name: Kim, Jongsoo
name: Kim, Shinyoung
name: Kim, Gwanjeong
name: Kim, Kyoung Hee
name: Kim, Mi-Ryang
name: Kim, Kee-Tae
name: Kim, Hyosung
name: Kirchschlager, Florian
name: Kobayashi, Masato I. N.
name: Koch, Patrick M.
name: Kusune, Takayoshi
name: Kwon, Jungmi
name: Lacaille, Kevin
name: Law, Chi-Yan
name: Lee, Chang Won
name: Lee, Hyeseung
name: Lee, Yong-Hee
name: Lee, Chin-Fei
name: Lee, Jeong-Eun
name: Lee, Sang-Sung
name: Li, Dalei
name: Li, Di
name: Li, Guangxing
name: Li, Hua-bai
name: Lin, Sheng-Jun
name: Liu, Hong-Li
name: Liu, Tie
name: Liu, Sheng-Yuan
name: Liu, Junhao
name: Longmore, Steven
name: Lu, Xing
name: Lyo, A-Ran
name: Mairs, Steve
name: Matsumura, Masafumi
name: Matthews, Brenda
name: Moriarty-Schieven, Gerald
name: Nagata, Tetsuya
name: Nakamura, Fumitaka
name: Nakanishi, Hiroyuki
name: Ngoc, Nguyen Bich
name: Ohashi, Nagayoshi
name: Onaka, Takashi
name: Park, Geumsook
name: Parsons, Harriet
name: Peretto, Nicolas
name: Priestley, Felix
name: Pyo, Tae-Soo
name: Qian, Lei
name: Rao, Ramprasad
name: Rawlings, Jonathan
name: Rawlings, Mark
name: Retter, Brendan
name: Richer, John
name: Rigby, Andrew
name: Sadavoy, Sarah
name: Saito, Hiro
name: Savini, Giorgio
name: Seta, Masumichi
name: Sharma, Ekta
name: Shimajiri, Yoshito
name: Shinnaga, Hiroko
name: Tahani, Mehrnoosh
name: Tamura, Motohide
name: Tang, Ya-Wen
name: Tang, Xindi
name: Tomisaka, Kohji
name: Tram, Le Ngoc
name: Tsukamoto, Yusuke
name: Viti, Serena
name: Wang, Hongchi
name: Wu, Jintai
name: Xie, Jinjin
name: Yang, Meng-Zhe
name: Yen, Hsi-Wei
name: Yoo, Hyunju
name: Yuan, Jinghua
name: Yun, Hyeong-Sik
name: Zenko, Tetsuya
name: Zhang, Guoyin
name: Zhang, Yapeng
name: Zhang, Chuan-Peng
name: Zhou, Jianjun
name: Zhu, Lei
name: de Looze, Ilse
name: Andre, Philippe
name: Dowell, C. Darren
name: Eden, David
name: Eyres, Stewart
name: Falle, Sam
name: Gouellec, Valentin J. M. Le
name: Poidevin, Frederick
name: Robitaille, Jean-Francois
name: van Loo, Sven
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present observations of polarized dust emission at 850 $μ$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 ($N_{\rm H_2}\sim 10^{22}$-10$^{23}$ cm$^{-2}$) complex molecular cloud with a submillimetre-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 $\sim$160$\pm$30 $μ$G in the main starless core and up to $\sim$90$\pm$40 $μ$G in the more diffuse, extended region. These field strengths give magnetically super- and sub-critical values respectively and both are found to be roughly trans-Alfvénic. We also present a new method of data reduction for these denser but fainter objects like starless cores.
description: Accepted for publication in ApJ. 23 pages, 9 figures (7 main text, 2 appendix)