The JCMT BISTRO Survey: Magnetic Fields Associated with a Network of Filaments in NGC 1333

Yasuo Doi , Tetsuo Hasegawa , Ray S. Furuya , Simon Coudé , Charles L. H. Hull , Doris Arzoumanian , Pierre Bastien , Michael Chun-Yuan Chen , James Di Francesco , Rachel Friesen , Martin Houde , Shu-Ichiro Inutsuka , Steve Mairs , Masafumi Matsumura , Takashi Onaka , Sarah Sadavoy , Yoshito Shimajiri , Mehrnoosh Tahani , Kohji Tomisaka , Chakali Eswaraiah , Patrick M. Koch , Kate Pattle , Chang Won Lee , Motohide Tamura , David Berry , Tao-Chung Ching , Jihye Hwang , Woojin Kwon , Archana Soam , Jia-Wei Wang , Shih-Ping Lai , Keping Qiu , Derek Ward-Thompson , Do-Young Byun , Huei-Ru Vivien Chen , Wen Ping Chen , Zhiwei Chen , Jungyeon Cho , Minho Choi , Yunhee Choi , Antonio Chrysostomou , Eun Jung Chung , Pham Ngoc Diep , Hao-Yuan Duan , Lapo Fanciullo , Jason Fiege , Erica Franzmann , Per Friberg , Gary Fuller , Tim Gledhill , Sarah F. Graves , Jane S. Greaves , Matt J. Griffin , Qilao Gu , Ilseung Han , Jennifer Hatchell , Saeko S. Hayashi , Thiem Hoang , Tsuyoshi Inoue , Kazunari Iwasaki , Il-Gyo Jeong , Doug Johnstone , Yoshihiro Kanamori , Ji-Hyun Kang , Miju Kang , Sung-Ju Kang , Akimasa Kataoka , Koji S. Kawabata , Francisca Kemper , Gwanjeong Kim , Jongsoo Kim , Kee-Tae Kim , Kyoung Hee Kim , Mi-Ryang Kim , Shinyoung Kim , Jason M. Kirk , Masato I. N. Kobayashi , Vera Konyves , Takayoshi Kusune , Jungmi Kwon , 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 , Hong-Li Liu , Junhao Liu , Sheng-Yuan Liu , Tie Liu , Ilse de Looze , A. -Ran Lyo , Brenda C. Matthews , Gerald H. Moriarty-Schieven , Tetsuya Nagata , Fumitaka Nakamura , Hiroyuki Nakanishi , Nagayoshi Ohashi , Geumsook Park , Harriet Parsons , Nicolas Peretto , Tae-Soo Pyo , Lei Qian , Ramprasad Rao , Mark G. Rawlings , Brendan Retter , John Richer , Andrew Rigby , Hiro Saito , Giorgio Savini , Anna M. M. Scaife , Masumichi Seta , Hiroko Shinnaga , Ya-Wen Tang , Yusuke Tsukamoto , Serena Viti , Hongchi Wang , Anthony P. Whitworth , Hsi-Wei Yen , Hyunju Yoo , Jinghua Yuan , Hyeong-Sik Yun , Tetsuya Zenko , Chuan-Peng Zhang , Guoyin Zhang , Yapeng Zhang , Jianjun Zhou , Lei Zhu , Philippe André , C. Darren Dowell , Stewart P. S. Eyres , Sam Falle , Sven van Loo , Jean-François Robitaille (1)

1 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble

We present new observations of the active star formation region NGC 1333 in the Perseus molecular cloud complex from the James Clerk Maxwell Telescope B-Fields In Star-forming Region Observations (BISTRO) survey with the POL-2 instrument. The BISTRO data cover the entire NGC 1333 complex (∼1.5 pc × 2 pc) at 0.02 pc resolution and spatially resolve the polarized emission from individual filamentary structures for the first time. The inferred magnetic field structure is complex as a whole, with each individual filament aligned at different position angles relative to the local field orientation. We combine the BISTRO data with low- and high- resolution data derived from Planck and interferometers to study the multiscale magnetic field structure in this region. The magnetic field morphology drastically changes below a scale of ∼1 pc and remains continuous from the scales of filaments (∼0.1 pc) to that of protostellar envelopes (∼0.005 pc or ∼1000 au). Finally, we construct simple models in which we assume that the magnetic field is always perpendicular to the long axis of the filaments. We demonstrate that the observed variation of the relative orientation between the filament axes and the magnetic field angles are well reproduced by this model, taking into account the projection effects of the magnetic field and filaments relative to the plane of the sky. These projection effects may explain the apparent complexity of the magnetic field structure observed at the resolution of BISTRO data toward the filament network.

Keywords: Interstellar medium; Interstellar magnetic fields; Interstellar filaments; Star formation; Polarimetry; Submillimeter astronomy; 847; 845; 842; 1569; 1278; 1647; Astrophysics - Astrophysics of Galaxies

Domains: Sciences of the Universe [physics]

Yasuo Doi, Tetsuo Hasegawa, Ray S. Furuya, Simon Coudé, Charles L. H. Hull, et al.. The JCMT BISTRO Survey: Magnetic Fields Associated with a Network of Filaments in NGC 1333. The Astrophysical Journal, 2020, 899, ⟨10.3847/1538-4357/aba1e2⟩. ⟨insu-03705186⟩