JCMT BISTRO Observations: Magnetic Field Morphology of Bubbles Associated with NGC 6334
Mehrnoosh Tahani, Pierre Bastien, Ray S. Furuya, Kate Pattle, Doug Johnstone, D. Arzoumanian, Yasuo Doi, Tetsuo Hasegawa, Shu‐ichiro Inutsuka, Simon Coudé, Laura Fissel, Michael Chun-Yuan Chen, F. Poidevin, Sarah Sadavoy, Rachel Friesen, Patrick M. Koch, James Di Francesco, G. H. Moriarty‐Schieven, Zhiwei Chen, Eun Jung Chung, Chakali Eswaraiah, Lapo Fanciullo, T. M. Gledhill, Valentin J. M. Le Gouellec, Thiem Hoang, Jihye Hwang, Ji‐hyun Kang, Kyoung Hee Kim, Florian Kirchschlager, Woojin Kwon, Chang Won Lee, Hongli Liu, Takashi Onaka, Mark G. Rawlings, Archana Soam, Motohide Tamura, Xindi Tang, Kohji Tomisaka, A. P. Whitworth, Jungmi Kwon, D. Hoang, M. P. Redman, David Berry, Tao-Chung Ching, Jia-Wei Wang, S. Lai, Keping Qiu, D. Ward–Thompson, Martin Houde, Do‐Young Byun, Huei-Ru Vivien Chen, Wen-Ping Chen, Jungyeon Cho, Minho Choi, Yunhee Choi, A. Chrysostomou, Pham Ngoc Diep, Hao-Yuan Duan, Jason Fiege, Erica Franzmann, Per Friberg, G. A. Fuller, Sarah Graves, J. S. Greaves, M. J. Griffin, Qilao Gu, Ilseung Han, J. Hatchell, Saeko S. Hayashi, Charles L. H. Hull, Tsuyoshi Inoue, Kazunari Iwasaki, Il-Gyo Jeong, Yoshihiro Kanamori, Miju Kang, Sung-Ju Kang, Akimasa Kataoka, Koji S. Kawabata, F. Kemper, Gwanjeong Kim, Jongsoo Kim, Kee‐Tae Kim, Mi-Ryang Kim, Shinyoung Kim, J. M. Kirk, Masato I. N. Kobayashi, V. Könyves, Takayoshi Kusune, Kevin Lacaille, Chi-Yan Law, Chin‐Fei Lee, Hyeseung Lee, Jeong‐Eun Lee, Sang-Sung Lee, Yong-Hee Lee, Dalei Li, Di Li, Hua-bai Li, Junhao Liu, Sheng‐Yuan Liu
Abstract
Abstract We study the H ii regions associated with the NGC 6334 molecular cloud observed in the submillimeter and taken as part of the B -fields In STar-forming Region Observations Survey. In particular, we investigate the polarization patterns and magnetic field morphologies associated with these H ii regions. Through polarization pattern and pressure calculation analyses, several of these bubbles indicate that the gas and magnetic field lines have been pushed away from the bubble, toward an almost tangential (to the bubble) magnetic field morphology. In the densest part of NGC 6334, where the magnetic field morphology is similar to an hourglass, the polarization observations do not exhibit observable impact from H ii regions. We detect two nested radial polarization patterns in a bubble to the south of NGC 6334 that correspond to the previously observed bipolar structure in this bubble. Finally, using the results of this study, we present steps (incorporating computer vision; circular Hough transform) that can be used in future studies to identify bubbles that have physically impacted magnetic field lines.