Filamentary Network and Magnetic Field Structures Revealed with BISTRO in the High-mass Star-forming Region NGC 2264: Global Properties and Local Magnetogravitational Configurations
Authors: Wang Jia-Wei , Koch Patrick M. , Clarke Seamus D. , Fuller Gary , Peretto Nicolas , Tang Ya-Wen , Yen Hsi-Wei , Lai Shih-Ping , Ohashi Nagayoshi , Arzoumanian Doris , Johnstone Doug , Furuya Ray , Inutsuka Shu-ichiro , Lee Chang Won , Ward-Thompson Derek , Le Gouellec Valentin J. M. , Liu Hong-Li , Fanciullo Lapo , Hwang Jihye , Pattle Kate , Poidevin Frédérick , Tahani Mehrnoosh , Onaka Takashi , Rawlings Mark G. , Chung Eun Jung , Liu Junhao , Lyo A-Ran , Priestley Felix , Hoang Thiem , Tamura Motohide , Berry David , Bastien Pierre , Ching Tao-Chung , Coudé Simon , Kwon Woojin , Chen Mike , Eswaraiah Chakali , Soam Archana , Hasegawa Tetsuo , Qiu Keping , Bourke Tyler L. , Byun Do-Young , Chen Zhiwei , Chen Huei-Ru Vivien , Chen Wen Ping , Cho Jungyeon , Choi Minho , Choi Yunhee , Choi Youngwoo , Chrysostomou Antonio , Dai Sophia , Di Francesco James , Diep​ Pham Ngoc , Doi Yasuo , Duan Yan , Duan Hao-Yuan , Eden David , Fiege Jason , Fissel Laura M. , Franzmann Erica , Friberg Per , Friesen Rachel , Gledhill Tim , Graves Sarah , Greaves Jane , Griffin Matt , Gu Qilao , Han Ilseung , Hayashi Saeko , Houde Martin , Inoue Tsuyoshi , Iwasaki Kazunari , Jeong Il-Gyo , Könyves Vera , Kang Ji-hyun , Kang Miju , Karoly Janik , Kataoka Akimasa , Kawabata Koji , Khan Zacariyya , Kim Mi-Ryang , Kim Kee-Tae , Kim Kyoung Hee , Kim Shinyoung , Kim Jongsoo , Kim Hyosung , Kim Gwanjeong , Kirchschlager Florian , Kirk Jason , Kobayashi Masato I. N. , Kusune Takayoshi , Kwon Jungmi , Lacaille Kevin , Law Chi-Yan , Lee Sang-Sung , Lee Hyeseung , Lee Jeong-Eun , Lee Chin-Fei , Li Dalei , Li Hua-bai , Li Guangxing , Li Di , Lin Sheng-Jun , Liu Tie , Liu Sheng-Yuan , Lu Xing , Mairs Steve , Matsumura Masafumi , Matthews Brenda , Moriarty-Schieven Gerald , Nagata Tetsuya , Nakamura Fumitaka , Nakanishi Hiroyuki , Ngoc Nguyen Bich , Park Geumsook , Parsons Harriet , Pyo Tae-Soo , Qian Lei , Rao Ramprasad , Rawlings Jonathan , Retter Brendan , Richer John , Rigby Andrew , Sadavoy Sarah , Saito Hiro , Savini Giorgio , Seta Masumichi , Sharma Ekta , Shimajiri Yoshito , Shinnaga Hiroko , Tang Xindi , Thuong Hoang Duc , Tomisaka Kohji , Tram Le Ngoc , Tsukamoto Yusuke , Viti Serena , Wang Hongchi , Whitworth Anthony , Wu Jintai , Xie Jinjin , Yang Meng-Zhe , Yoo Hyunju , Yuan Jinghua , Yun Hyeong-Sik , Zenko Tetsuya , Zhang Chuan-Peng , Zhang Yapeng , Zhang Guoyin , Zhou Jianjun , Zhu Lei , de Looze Ilse , André Philippe , Dowell C. Darren , Eyres Stewart , Falle Sam , Robitaille Jean-François , van Loo Sven 
Published: February 2024

Abstract
We report 850 μm continuum polarization observations toward the filamentary high-mass star-forming region NGC 2264, taken as part of the B-fields In STar forming Regions Observations large program on the James Clerk Maxwell Telescope. These data reveal a well-structured nonuniform magnetic field in the NGC 2264C and 2264D regions with a prevailing orientation around 30° from north to east. Field strength estimates and a virial analysis of the major clumps indicate that NGC 2264C is globally dominated by gravity, while in 2264D, magnetic, gravitational, and kinetic energies are roughly balanced. We present an analysis scheme that utilizes the locally resolved magnetic field structures, together with the locally measured gravitational vector field and the extracted filamentary network. From this, we infer statistical trends showing that this network consists of two main groups of filaments oriented approximately perpendicular to one another. Additionally, gravity shows one dominating converging direction that is roughly perpendicular to one of the filament orientations, which is suggestive of mass accretion along this direction. Beyond these statistical trends, we identify two types of filaments. The type I filament is perpendicular to the magnetic field with local gravity transitioning from parallel to perpendicular to the magnetic field from the outside to the filament ridge. The type II filament is parallel to the magnetic field and local gravity. We interpret these two types of filaments as originating from the competition between radial collapsing, driven by filament self-gravity, and longitudinal collapsing, driven by the region's global gravity.