The JCMT BISTRO Survey: The Magnetic Fields of the IC 348 Star-forming Region

作者：Young-Woo Choi, Woojin Kwon, Kate Pattle, D. Arzoumanian, Tyler L. Bourke, Thiem Hoang, Jihye Hwang, Patrick M. Koch, Sarah Sadavoy, Pierre Bastien, Ray S. Furuya, S. Lai, Keping Qiu, D. Ward–Thompson, David Berry, Do‐Young Byun, Huei-Ru Vivien Chen, Wen-Ping Chen, Mike Chen, Zhiwei Chen, Tao-Chung Ching, Jungyeon Cho, Minho Choi, Yunhee Choi, Simon Coudé, A. Chrysostomou, Eun Jung Chung, Sophia Dai, Victor P. Debattista, James Di Francesco, Pham Ngoc Diep, Yasuo Doi, Hao-Yuan Duan, Yan Duan, Chakali Eswaraiah, Lapo Fanciullo, Jason Fiege, Laura M. Fissel, Erica Franzmann, Per Friberg, Rachel Friesen, G. A. Fuller, T. M. Gledhill, Sarah Graves, J. S. Greaves, Matt Griffin, Qilao Gu, Ilseung Han, Tetsuo Hasegawa, Martin Houde, Charles L. H. Hull, Tsuyoshi Inoue, Shu‐ichiro Inutsuka, K. Iwasaki, Il-Gyo Jeong, Doug Johnstone, Janik Karoly, V. Könyves, Ji‐hyun Kang, Miju Kang, Akimasa Kataoka, Koji S. Kawabata, F. Kemper, Jongsoo Kim, Shinyoung Kim, Gwanjeong Kim, Kyoung Hee Kim, Mi-Ryang Kim, Kee‐Tae Kim, Hyosung Kim, Florian Kirchschlager, J. M. Kirk, Masato I. N. Kobayashi, Takayoshi Kusune, Jungmi Kwon, Kevin Lacaille, Chi-Yan Law, Chang Won Lee, Hyeseung Lee, Chin‐Fei Lee, Jeong‐Eun Lee, Sang-Sung Lee, Dalei Li, Di Li, Guang-Xing Li, Hua-bai Li, Sheng-Jun Lin, Hongli Liu, Tie Liu, Sheng‐Yuan Liu, Junhao Liu, Steven N. Longmore, Xing Lu, A-Ran Lyo, Steve Mairs, M. Matsumura, Brenda C. Matthews, G. H. Moriarty‐Schieven, Tetsuya Nagata, Fumitaka Nakamura, Hiroyuki Nakanishi, Nguyen Bich Ngoc, Nagayoshi Ohashi, Takashi Onaka, Geumsook Park, Harriet Parsons, N. Peretto, F D Priestley, Tae‐Soo Pyo, Lei Qian, Ramprasad Rao, J. M. C. Rawlings, Mark G. Rawlings, Brendan Retter, John Richer, A. J. Rigby, Hiro Saito, G. Savini, Masumichi Seta, Ekta Sharma, Yoshito Shimajiri, Hiroko Shinnaga, Archana Soam, Mehrnoosh Tahani, Motohide Tamura, Ya‐Wen Tang, Xindi Tang, Kohji Tomisaka, Le Ngoc Tram, Yusuke Tsukamoto, S. Viti, Hongchi Wang, Jia-Wei Wang, A. P. Whitworth, Jintai Wu, Jinjin Xie, Meng-Zhe Yang, Hsi-Wei Yen, Hyunju Yoo, Jinghua Yuan, Hyeong-Sik Yun, Tetsuya Zenko, Guoyin Zhang, Yapeng Zhang, Chuan-Peng Zhang, Jianjun Zhou, Lei Zhu, Ilse De Looze, P. André, C. D. Dowell, David Eden, S. P. S. Eyres, S. A. E. G. Falle, Valentin J. M. Le Gouellec, F. Poidevin, S. Van Loo · 发表于：The Astrophysical Journal · 年份：2024 · DOI：10.3847/1538-4357/ad88ed · 被引用次数：6 · 研究领域：Astrophysics and Star Formation Studies、Stellar, planetary, and galactic studies、Astro and Planetary Science

Abstract We present 850 μ m polarization observations of the IC 348 star-forming region in the Perseus molecular cloud as part of the B-fields In STar-forming Region Observation survey. We study the magnetic properties of two cores (HH 211 MMS and IC 348 MMS) and a filamentary structure of IC 348. We find that the overall field tends to be more perpendicular than parallel to the filamentary structure of the region. The polarization fraction decreases with intensity, and we estimate the trend by power law and the mean of the Rice distribution fittings. The power indices for the cores are much smaller than 1, indicative of possible grain growth to micron size in the cores. We also measure the magnetic field strengths of the two cores and the filamentary area separately by applying the Davis–Chandrasekhar–Fermi method and its alternative version for compressed medium. The estimated mass-to-flux ratios are 0.45–2.20 and 0.63–2.76 for HH 211 MMS and IC 348 MMS, respectively, while the ratios for the filament are 0.33–1.50. This result may suggest that the transition from subcritical to supercritical conditions occurs at the core scale (∼0.05 pc) in the region. In addition, we study the energy balance of the cores and find that the relative strength of turbulence to the magnetic field tends to be stronger for IC 348 MMS than for HH 211 MMS. The result could potentially explain the different configurations inside the two cores: a single protostellar system in HH 211 MMS and multiple...