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Dust polarized emis...
Dust polarized emission observations of NGC 6334: BISTRO reveals the details of the complex but organized magnetic field structure of the high-mass star-forming hub-filament network
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- Arzoumanian, Doris (author)
- Universidade do Porto,University of Porto
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- Furuya, Ray S. (author)
- Tokushima University
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- Hasegawa, Tetsuo (author)
- National Astronomical Observatory of Japan
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show more...
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- Tahani, M. (author)
- National Research Council Canada
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- Sadavoy, S. I. (author)
- Queen's University
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- Hull, Charles L. H. (author)
- National Astronomical Observatory of Japan
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- Johnstone, D. (author)
- National Research Council Canada
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- Koch, Patrick M. (author)
- Academia Sinica Taiwan
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- Inutsuka, Shu-Ichiro (author)
- Nagoya University
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- Doi, Yasuo (author)
- University of Tokyo, Japan
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- Hoang, Thiem (author)
- Korea Astronomy and Space Science Institute
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- Onaka, Takashi (author)
- University of Tokyo, Japan,Meisei University
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- Iwasaki, Kazunari (author)
- National Astronomical Observatory of Japan
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- Shimajiri, Yoshito (author)
- National Astronomical Observatory of Japan
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- Inoue, Tsuyoshi (author)
- Nagoya University
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- Peretto, Nicolas (author)
- Cardiff University
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- André, P. (author)
- Université Paris-Saclay,University Paris-Saclay
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- Bastien, Pierre (author)
- Université de Montréal
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- Berry, David (author)
- East Asian Observatory
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- Chen, Huei-Ru Vivien (author)
- Academia Sinica Taiwan
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- Di Francesco, J. (author)
- National Research Council Canada
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- Eswaraiah, Chakali (author)
- Chinese Academy of Sciences
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- Fanciullo, Lapo (author)
- Academia Sinica Taiwan
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- Fissel, Laura M. (author)
- Queen's University
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- Hwang, Jihye (author)
- Korea Astronomy and Space Science Institute
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- Kang, Ji-hyun (author)
- Korea Astronomy and Space Science Institute
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- Kim, Gwanjeong (author)
- National Astronomical Observatory of Japan
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- Kim, Kee-Tae (author)
- Korea Astronomy and Space Science Institute
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- Kirchschlager, F. (author)
- University College London (UCL)
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- Kwon, Woojin (author)
- Seoul National University
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- Lee, C.W. (author)
- Korea Astronomy and Space Science Institute
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- Liu, Hong-Li (author)
- Yunnan University
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- Lyo, A. (author)
- Korea Astronomy and Space Science Institute
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- Pattle, Kate (author)
- National University of Ireland
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- Soam, Archana (author)
- Universities Space Research Association
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- Tang, X. D. (author)
- Chinese Academy of Sciences
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- Whitworth, Anthony (author)
- Cardiff University
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- Ching, Tao-Chung (author)
- Chinese Academy of Sciences
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- Coudé, Simon (author)
- Universities Space Research Association
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- Wang, Jia-Wei (author)
- Academia Sinica Taiwan
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- Ward-Thompson, D. (author)
- University of Central Lancashire
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- Lai, Shih-Ping (author)
- Academia Sinica Taiwan
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- Qiu, Keping (author)
- Nanjing University
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- Bourke, T. L. (author)
- SKA Organisation
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- Byun, Do Young (author)
- Korea Astronomy and Space Science Institute
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- Chen, Michael Chun-Yuan (author)
- University of Victoria
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- Chen, Zhiwei (author)
- Chinese Academy of Sciences
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- Chen, Wen Ping (author)
- National Central University
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- Cho, Jungyeon (author)
- Chungnam National University
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- Choi, Yunhee (author)
- Korea Astronomy and Space Science Institute
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- Choi, Minho (author)
- Korea Astronomy and Space Science Institute
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- Chrysostomou, A. (author)
- SKA Organisation
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- Chung, Eun Jung (author)
- Chungnam National University
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- Dai, Sophia (author)
- Chinese Academy of Sciences
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- Diep, Pham Ngoc (author)
- Vietnam Academy of Science and Technology
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- Duan, Hao-Yuan (author)
- National Tsing Hua University
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- Duan, Yan (author)
- Chinese Academy of Sciences
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- Eden, D. J. (author)
- Liverpool John Moores University
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- Fiege, J. (author)
- University of Manitoba
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- Franzmann, Erica (author)
- University of Manitoba
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- Friberg, P. (author)
- East Asian Observatory
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- Fuller, G. A. (author)
- University of Manchester
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- Gledhill, T. (author)
- University of Hertfordshire
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- Graves, Sarah F. (author)
- East Asian Observatory
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- Greaves, J. S. (author)
- Cardiff University
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- Griffin, Matt (author)
- Cardiff University
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- Gu, Qilao (author)
- Chinese University of Hong Kong
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- Han, Ilseung (author)
- Korea Astronomy and Space Science Institute
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- Hatchell, J. (author)
- University of Exeter
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- Hayashi, S. (author)
- National Astronomical Observatory of Japan
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- Jeong, Il-Gyo (author)
- Korea Astronomy and Space Science Institute
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- Kang, Miju (author)
- Korea Astronomy and Space Science Institute
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- Kang, Sung-Ju (author)
- Korea Astronomy and Space Science Institute
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- Kataoka, Akimasa (author)
- National Astronomical Observatory of Japan
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- Kawabata, K. (author)
- Hiroshima University
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- Kemper, F. (author)
- Academia Sinica Taiwan
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- Kim, Mi-Ryang (author)
- Korea Astronomy and Space Science Institute
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- Kim, Kyoung Hee (author)
- Korea Astronomy and Space Science Institute
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- Kim, Jongsoo (author)
- Korea Astronomy and Space Science Institute
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- Kim, Shinyoung (author)
- Korea Astronomy and Space Science Institute
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- Kirk, J. (author)
- University of Central Lancashire
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- Kobayashi, Masato I. N. (author)
- Tohoku University
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- Konyves, Vera (author)
- University of Central Lancashire
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- Kusune, Takayoshi (author)
- National Astronomical Observatory of Japan
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- Kwon, Jungmi (author)
- University of Tokyo, Japan
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- Lacaille, Kevin (author)
- McMaster University
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- Law, Chi Yan, 1990 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chinese University of Hong Kong
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- Lee, Chin-Fei (author)
- Academia Sinica Taiwan
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- Lee, Yong-Hee (author)
- East Asian Observatory
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- Lee, Sang Sung (author)
- Korea Astronomy and Space Science Institute
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- Lee, H. (author)
- Chungnam National University
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- Lee, Jeong Eun (author)
- Kyung Hee University
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- Li, Hua-Bai (author)
- Chinese University of Hong Kong
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- Li, D. (author)
- Chinese Academy of Sciences
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- Li, Dalei (author)
- Chinese Academy of Sciences
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- Liu, J. (author)
- Nanjing University
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- Liu, Tie (author)
- Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences
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- Liu, Sheng-Yuan (author)
- Academia Sinica Taiwan
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- Lu, X. (author)
- National Astronomical Observatory of Japan
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- Mairs, Steve (author)
- East Asian Observatory
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- Matsumura, Masafumi (author)
- Kagawa University
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- Matthews, B. C. (author)
- National Research Council Canada
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- Moriarty-Schieven, Gerald H. (author)
- National Research Council Canada
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- Nagata, Tetsuya (author)
- Kyoto University
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- Nakamura, Fumitaka (author)
- National Astronomical Observatory of Japan
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- Nakanishi, Hiroyuki (author)
- Kagoshima University
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- Ngoc, Nguyen Bich (author)
- Vietnam Academy of Science and Technology
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- Ohashi, Nagayoshi (author)
- National Astronomical Observatory of Japan
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- Park, G. (author)
- Korea Astronomy and Space Science Institute
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- Parsons, Harriet (author)
- East Asian Observatory
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- Pyo, Tae-Soo (author)
- National Astronomical Observatory of Japan
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- Qian, Lei (author)
- Chinese Academy of Sciences
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- Rao, R. (author)
- Academia Sinica Taiwan
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- Rawlings, J. M.C. (author)
- University College London (UCL)
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- Rawlings, M.G. (author)
- East Asian Observatory
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- Retter, Brendan (author)
- Cardiff University
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- Richer, J. (author)
- University Of Cambridge
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- Rigby, Andrew (author)
- Cardiff University
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- Saito, Hiro (author)
- University of Tsukuba
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- Savini, G. (author)
- University College London (UCL)
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- Scaife, A. M. M. (author)
- University of Manchester
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- Seta, Masumichi (author)
- Kwansei Gakuin University
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- Shinnaga, H. (author)
- Kagoshima University
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- Tamura, Motohide (author)
- National Astronomical Observatory of Japan
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- Tang, Ya-Wen (author)
- Academia Sinica Taiwan
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- Tomisaka, Kohji (author)
- National Astronomical Observatory of Japan
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- Ngoc Tram, Le (author)
- Vietnam Academy of Science and Technology
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- Tsukamoto, Yusuke (author)
- Kagoshima University
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- Viti, Serena (author)
- University College London (UCL)
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- Wang, Hongchi (author)
- Chinese Academy of Sciences
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- Xie, Jinjin (author)
- Chinese Academy of Sciences
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- Yen, Hsi-Wei (author)
- Academia Sinica Taiwan
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- Yoo, Hyunju (author)
- Korea Astronomy and Space Science Institute
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- Yuan, Jinghua (author)
- Chinese Academy of Sciences
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- Yun, Hyeong-Sik (author)
- Kyung Hee University
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- Zenko, Tetsuya (author)
- Kyoto University
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- Zhang, Guoyin (author)
- Chinese Academy of Sciences
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- Zhang, Chuan-Peng (author)
- Chinese Academy of Sciences
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- Zhang, Yapeng (author)
- Chinese University of Hong Kong
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- Zhou, Jianjun (author)
- Chinese Academy of Sciences
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- Zhu, Lei (author)
- Chinese Academy of Sciences
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- De Looze, I. (author)
- University College London (UCL)
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Dowell, C. D. (author)
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- Eyres, S. (author)
- University of South Wales
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- Friesen, R. (author)
- National Radio Astronomy Observatory
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- Robitaille, Jean-François (author)
- Université Grenoble Alpes,Grenoble Alpes University
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- Van Loo, Sven (author)
- University of Leeds
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(creator_code:org_t)
- 2021-03-11
- 2021
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 647
- Related links:
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http://uhra.herts.ac...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Context. Molecular filaments and hubs have received special attention recently thanks to new studies showing their key role in star formation. While the (column) density and velocity structures of both filaments and hubs have been carefully studied, their magnetic field (B-field) properties have yet to be characterized. Consequently, the role of B-fields in the formation and evolution of hub-filament systems is not well constrained. Aims. We aim to understand the role of the B-field and its interplay with turbulence and gravity in the dynamical evolution of the NGC 6334 filament network that harbours cluster-forming hubs and high-mass star formation. Methods. We present new observations of the dust polarized emission at 850 μm toward the 2 pc × 10 pc map of NGC 6334 at a spatial resolution of 0.09 pc obtained with the James Clerk Maxwell Telescope (JCMT) as part of the B-field In STar-forming Region Observations (BISTRO) survey. We study the distribution and dispersion of the polarized intensity (PI), the polarization fraction (PF), and the plane-of-The-sky B-field angle (χB_POS) toward the whole region, along the 10 pc-long ridge and along the sub-filaments connected to the ridge and the hubs. We derived the power spectra of the intensity and χBPOS along the ridge crest and compared them with the results obtained from simulated filaments. Results. The observations span 3 orders of magnitude in Stokes I and PI and 2 orders of magnitude in PF (from 0.2 to 20%). A large scatter in PI and PF is observed for a given value of I. Our analyses show a complex B-field structure when observed over the whole region ( 10 pc); however, at smaller scales (1 pc), χBPOS varies coherently along the crests of the filament network. The observed power spectrum of χBPOS can be well represented with a power law function with a slope of-1.33 ± 0.23, which is 20% shallower than that of I. We find that this result is compatible with the properties of simulated filaments and may indicate the physical processes at play in the formation and evolution of star-forming filaments. Along the sub-filaments, χBPOS rotates frombeing mostly perpendicular or randomly oriented with respect to the crests to mostly parallel as the sub-filaments merge with the ridge and hubs. This variation of the B-field structure along the sub-filaments may be tracing local velocity flows of infalling matter in the ridge and hubs. Our analysis also suggests a variation in the energy balance along the crests of these sub-filaments, from magnetically critical or supercritical at their far ends to magnetically subcritical near the ridge and hubs. We also detect an increase in PF toward the high-column density (NH2 â 1023 cm-2) star cluster-forming hubs. These latter large PF values may be explained by the increase in grain alignment efficiency due to stellar radiation from the newborn stars, combined with an ordered B-field structure. Conclusions. These observational results reveal for the first time the characteristics of the small-scale (down to 0.1 pc) B-field structure of a 10 pc-long hub-filament system. Our analyses show variations in the polarization properties along the sub-filaments that may be tracing the evolution of their physical properties during their interaction with the ridge and hubs. We also detect an impact of feedback from young high-mass stars on the local B-field structure and the polarization properties, which could put constraints on possible models for dust grain alignment and provide important hints as to the interplay between the star formation activity and interstellar B-fields.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- Polarization
- ISM: clouds
- ISM: magnetic fields
- Submillimeter: ISM
- Stars: formation
- ISM: structure
Publication and Content Type
- art (subject category)
- ref (subject category)
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Arzoumanian, Dor ...
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Furuya, Ray S.
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Hasegawa, Tetsuo
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Tahani, M.
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Johnstone, D.
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Koch, Patrick M.
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Doi, Yasuo
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Hoang, Thiem
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Onaka, Takashi
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Iwasaki, Kazunar ...
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Shimajiri, Yoshi ...
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Inoue, Tsuyoshi
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Peretto, Nicolas
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André, P.
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Bastien, Pierre
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Berry, David
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Chen, Huei-Ru Vi ...
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Di Francesco, J.
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Eswaraiah, Chaka ...
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Fanciullo, Lapo
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Fissel, Laura M.
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Hwang, Jihye
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Kang, Ji-hyun
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Kim, Gwanjeong
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Kim, Kee-Tae
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Kirchschlager, F ...
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Kwon, Woojin
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Lee, C.W.
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Liu, Hong-Li
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Lyo, A.
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Pattle, Kate
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Soam, Archana
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Tang, X. D.
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Whitworth, Antho ...
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Ching, Tao-Chung
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Coudé, Simon
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Wang, Jia-Wei
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Ward-Thompson, D ...
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Lai, Shih-Ping
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Qiu, Keping
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Bourke, T. L.
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Byun, Do Young
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Chen, Michael Ch ...
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Chen, Zhiwei
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Chen, Wen Ping
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Cho, Jungyeon
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Choi, Yunhee
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Choi, Minho
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Chrysostomou, A.
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Chung, Eun Jung
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Dai, Sophia
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Diep, Pham Ngoc
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Duan, Hao-Yuan
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Duan, Yan
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Eden, D. J.
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Fiege, J.
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Franzmann, Erica
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Friberg, P.
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Fuller, G. A.
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Gledhill, T.
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Graves, Sarah F.
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Greaves, J. S.
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Griffin, Matt
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Gu, Qilao
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Han, Ilseung
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Hatchell, J.
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Hayashi, S.
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Jeong, Il-Gyo
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Kang, Miju
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Kang, Sung-Ju
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Kataoka, Akimasa
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Kawabata, K.
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Kemper, F.
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Kim, Mi-Ryang
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Kim, Kyoung Hee
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Kim, Jongsoo
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Kim, Shinyoung
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Kirk, J.
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Kobayashi, Masat ...
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Konyves, Vera
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Kusune, Takayosh ...
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Kwon, Jungmi
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Lacaille, Kevin
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Law, Chi Yan, 19 ...
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Lee, Chin-Fei
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Lee, Yong-Hee
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Lee, Sang Sung
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Lee, H.
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Lee, Jeong Eun
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Li, Hua-Bai
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Li, D.
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Li, Dalei
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Liu, J.
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Liu, Tie
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Liu, Sheng-Yuan
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Lu, X.
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Mairs, Steve
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Matsumura, Masaf ...
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Matthews, B. C.
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Moriarty-Schieve ...
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Nagata, Tetsuya
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Nakamura, Fumita ...
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Nakanishi, Hiroy ...
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Ngoc, Nguyen Bic ...
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Ohashi, Nagayosh ...
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Park, G.
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Parsons, Harriet
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Pyo, Tae-Soo
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Qian, Lei
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Rao, R.
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Rawlings, J. M.C ...
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Rawlings, M.G.
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Retter, Brendan
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Richer, J.
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Rigby, Andrew
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Saito, Hiro
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Savini, G.
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Scaife, A. M. M.
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Seta, Masumichi
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Shinnaga, H.
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Tamura, Motohide
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Tang, Ya-Wen
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Tomisaka, Kohji
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Ngoc Tram, Le
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Tsukamoto, Yusuk ...
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Viti, Serena
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Wang, Hongchi
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Xie, Jinjin
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Yen, Hsi-Wei
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Yoo, Hyunju
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Yuan, Jinghua
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Yun, Hyeong-Sik
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Zenko, Tetsuya
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Zhang, Guoyin
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Zhang, Chuan-Pen ...
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Zhang, Yapeng
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Zhou, Jianjun
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Zhu, Lei
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De Looze, I.
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Dowell, C. D.
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Eyres, S.
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Friesen, R.
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Van Loo, Sven
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