The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43
-
Published:2023-07-01
Issue:1
Volume:952
Page:29
-
ISSN:0004-637X
-
Container-title:The Astrophysical Journal
-
language:
-
Short-container-title:ApJ
Author:
Karoly JanikORCID, Ward-Thompson DerekORCID, Pattle KateORCID, Berry DavidORCID, Whitworth AnthonyORCID, Kirk JasonORCID, Bastien PierreORCID, Ching Tao-ChungORCID, Coudé SimonORCID, Hwang JihyeORCID, Kwon WoojinORCID, Soam ArchanaORCID, Wang Jia-WeiORCID, Hasegawa TetsuoORCID, Lai Shih-PingORCID, Qiu KepingORCID, Arzoumanian DorisORCID, Bourke Tyler L.ORCID, Byun Do-Young, Chen Huei-Ru VivienORCID, Chen Wen PingORCID, Chen Mike, Chen Zhiwei, Cho JungyeonORCID, Choi Minho, Choi Youngwoo, Choi Yunhee, Chrysostomou Antonio, Chung Eun JungORCID, Dai Sophia, Debattista VictorORCID, Di Francesco JamesORCID, Diep Pham NgocORCID, Doi YasuoORCID, Duan Hao-Yuan, Duan Yan, Eswaraiah ChakaliORCID, Fanciullo LapoORCID, Fiege Jason, Fissel Laura M.ORCID, Franzmann Erica, Friberg Per, Friesen Rachel, Fuller Gary, Furuya Ray, Gledhill TimORCID, Graves Sarah, Greaves Jane, Griffin Matt, Gu Qilao, Han Ilseung, Hoang ThiemORCID, Houde MartinORCID, Hull Charles L. H.ORCID, Inoue TsuyoshiORCID, Inutsuka Shu-ichiroORCID, Iwasaki KazunariORCID, Jeong Il-GyoORCID, Johnstone DougORCID, Könyves Vera, Kang Ji-hyunORCID, Kang MijuORCID, Kataoka AkimasaORCID, Kawabata Koji, Kemper FranciscaORCID, Kim JongsooORCID, Kim ShinyoungORCID, Kim GwanjeongORCID, Kim Kyoung HeeORCID, Kim Mi-Ryang, Kim Kee-TaeORCID, Kim Hyosung, Kirchschlager FlorianORCID, Kobayashi Masato I. N.ORCID, Koch Patrick M.ORCID, Kusune Takayoshi, Kwon JungmiORCID, Lacaille Kevin, Law Chi-Yan, Lee Chang WonORCID, Lee Hyeseung, Lee Yong-Hee, Lee Chin-FeiORCID, Lee Jeong-EunORCID, Lee Sang-Sung, Li Dalei, Li Di, Li Guangxing, Li Hua-bai, Lin Sheng-JunORCID, Liu Hong-LiORCID, Liu TieORCID, Liu Sheng-YuanORCID, Liu JunhaoORCID, Longmore StevenORCID, Lu XingORCID, Lyo A-Ran, Mairs SteveORCID, Matsumura MasafumiORCID, Matthews Brenda, Moriarty-Schieven GeraldORCID, Nagata Tetsuya, Nakamura Fumitaka, Nakanishi Hiroyuki, Ngoc Nguyen BichORCID, Ohashi NagayoshiORCID, Onaka TakashiORCID, Park Geumsook, Parsons Harriet, Peretto Nicolas, Priestley Felix, Pyo Tae-Soo, Qian Lei, Rao Ramprasad, Rawlings JonathanORCID, Rawlings MarkORCID, Retter Brendan, Richer John, Rigby Andrew, Sadavoy Sarah, Saito Hiro, Savini Giorgio, Seta Masumichi, Sharma EktaORCID, Shimajiri YoshitoORCID, Shinnaga Hiroko, Tahani MehrnooshORCID, Tamura MotohideORCID, Tang Ya-Wen, Tang XindiORCID, Tomisaka KohjiORCID, Tram Le NgocORCID, Tsukamoto Yusuke, Viti Serena, Wang HongchiORCID, Wu Jintai, Xie JinjinORCID, Yang Meng-Zhe, Yen Hsi-WeiORCID, Yoo HyunjuORCID, Yuan Jinghua, Yun Hyeong-SikORCID, Zenko Tetsuya, Zhang Guoyin, Zhang YapengORCID, Zhang Chuan-PengORCID, Zhou JianjunORCID, Zhu Lei, de Looze Ilse, André Philippe, Dowell C. Darren, Eden David, Eyres Stewart, Falle SamORCID, Le Gouellec Valentin J. M., Poidevin FrédérickORCID, Robitaille Jean-FrançoisORCID, van Loo Sven
Abstract
Abstract
We present observations of polarized dust emission at 850 μm 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
H
2
∼
10
22
–1023 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 ∼160 ± 30 μG in the main starless core and up to ∼90 ± 40 μG in the more diffuse, extended region. These field strengths give magnetically super- and subcritical 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.
Funder
UKRI ∣ Science and Technology Facilities Council Royal Society National Research Foundation of Korea National Astronomical Observatory of Japan Ministry of Science and Technology, Taiwan MEXT ∣ Japan Society for the Promotion of Science MEC ∣ Agencia Estatal de Investigación DST ∣ Science and Engineering Research Board MOST ∣ National Key Research and Development Program of China
Publisher
American Astronomical Society
Subject
Space and Planetary Science,Astronomy and Astrophysics
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|