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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 15537naa a2202161 4500 | |
| 001 | oai:research.chalmers.se:9dee25be-5fe0-49fe-a6a5-a7a28c8c0f1f | |
| 003 | SwePub | |
| 008 | 220601s2021 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://research.chalmers.se/publication/5306192 URI |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2020386242 DOI |
| 040 | a (SwePub)cth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Arzoumanian, Dorisu Universidade do Porto,University of Porto4 aut |
| 245 | 1 0 | a 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 |
| 264 | c 2021-03-11 | |
| 264 | 1 | b EDP Sciences,c 2021 |
| 520 | a 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. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Fusion, plasma och rymdfysik0 (SwePub)103032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Fusion, Plasma and Space Physics0 (SwePub)103032 hsv//eng |
| 653 | a Polarization | |
| 653 | a ISM: clouds | |
| 653 | a ISM: magnetic fields | |
| 653 | a Submillimeter: ISM | |
| 653 | a Stars: formation | |
| 653 | a ISM: structure | |
| 700 | 1 | a Furuya, Ray S.u Tokushima University4 aut |
| 700 | 1 | a Hasegawa, Tetsuou National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Tahani, M.u National Research Council Canada4 aut |
| 700 | 1 | a Sadavoy, S. I.u Queen's University4 aut |
| 700 | 1 | a Hull, Charles L. H.u National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Johnstone, D.u National Research Council Canada4 aut |
| 700 | 1 | a Koch, Patrick M.u Academia Sinica Taiwan4 aut |
| 700 | 1 | a Inutsuka, Shu-Ichirou Nagoya University4 aut |
| 700 | 1 | a Doi, Yasuou University of Tokyo, Japan4 aut |
| 700 | 1 | a Hoang, Thiemu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Onaka, Takashiu University of Tokyo, Japan,Meisei University4 aut |
| 700 | 1 | a Iwasaki, Kazunariu National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Shimajiri, Yoshitou National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Inoue, Tsuyoshiu Nagoya University4 aut |
| 700 | 1 | a Peretto, Nicolasu Cardiff University4 aut |
| 700 | 1 | a André, P.u Université Paris-Saclay,University Paris-Saclay4 aut |
| 700 | 1 | a Bastien, Pierreu Université de Montréal4 aut |
| 700 | 1 | a Berry, Davidu East Asian Observatory4 aut |
| 700 | 1 | a Chen, Huei-Ru Vivienu Academia Sinica Taiwan4 aut |
| 700 | 1 | a Di Francesco, J.u National Research Council Canada4 aut |
| 700 | 1 | a Eswaraiah, Chakaliu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Fanciullo, Lapou Academia Sinica Taiwan4 aut |
| 700 | 1 | a Fissel, Laura M.u Queen's University4 aut |
| 700 | 1 | a Hwang, Jihyeu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Kang, Ji-hyunu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Kim, Gwanjeongu National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Kim, Kee-Taeu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Kirchschlager, F.u University College London (UCL)4 aut |
| 700 | 1 | a Kwon, Woojinu Seoul National University4 aut |
| 700 | 1 | a Lee, C.W.u Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Liu, Hong-Liu Yunnan University4 aut |
| 700 | 1 | a Lyo, A.u Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Pattle, Kateu National University of Ireland4 aut |
| 700 | 1 | a Soam, Archanau Universities Space Research Association4 aut |
| 700 | 1 | a Tang, X. D.u Chinese Academy of Sciences4 aut |
| 700 | 1 | a Whitworth, Anthonyu Cardiff University4 aut |
| 700 | 1 | a Ching, Tao-Chungu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Coudé, Simonu Universities Space Research Association4 aut |
| 700 | 1 | a Wang, Jia-Weiu Academia Sinica Taiwan4 aut |
| 700 | 1 | a Ward-Thompson, D.u University of Central Lancashire4 aut |
| 700 | 1 | a Lai, Shih-Pingu Academia Sinica Taiwan4 aut |
| 700 | 1 | a Qiu, Kepingu Nanjing University4 aut |
| 700 | 1 | a Bourke, T. L.u SKA Organisation4 aut |
| 700 | 1 | a Byun, Do Youngu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Chen, Michael Chun-Yuanu University of Victoria4 aut |
| 700 | 1 | a Chen, Zhiweiu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Chen, Wen Pingu National Central University4 aut |
| 700 | 1 | a Cho, Jungyeonu Chungnam National University4 aut |
| 700 | 1 | a Choi, Yunheeu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Choi, Minhou Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Chrysostomou, A.u SKA Organisation4 aut |
| 700 | 1 | a Chung, Eun Jungu Chungnam National University4 aut |
| 700 | 1 | a Dai, Sophiau Chinese Academy of Sciences4 aut |
| 700 | 1 | a Diep, Pham Ngocu Vietnam Academy of Science and Technology4 aut |
| 700 | 1 | a Duan, Hao-Yuanu National Tsing Hua University4 aut |
| 700 | 1 | a Duan, Yanu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Eden, D. J.u Liverpool John Moores University4 aut |
| 700 | 1 | a Fiege, J.u University of Manitoba4 aut |
| 700 | 1 | a Franzmann, Ericau University of Manitoba4 aut |
| 700 | 1 | a Friberg, P.u East Asian Observatory4 aut |
| 700 | 1 | a Fuller, G. A.u University of Manchester4 aut |
| 700 | 1 | a Gledhill, T.u University of Hertfordshire4 aut |
| 700 | 1 | a Graves, Sarah F.u East Asian Observatory4 aut |
| 700 | 1 | a Greaves, J. S.u Cardiff University4 aut |
| 700 | 1 | a Griffin, Mattu Cardiff University4 aut |
| 700 | 1 | a Gu, Qilaou Chinese University of Hong Kong4 aut |
| 700 | 1 | a Han, Ilseungu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Hatchell, J.u University of Exeter4 aut |
| 700 | 1 | a Hayashi, S.u National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Jeong, Il-Gyou Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Kang, Mijuu Korea Astronomy and Space Science Institute4 aut |
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| 700 | 1 | a Kataoka, Akimasau National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Kawabata, K.u Hiroshima University4 aut |
| 700 | 1 | a Kemper, F.u Academia Sinica Taiwan4 aut |
| 700 | 1 | a Kim, Mi-Ryangu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Kim, Kyoung Heeu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Kim, Jongsoou Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Kim, Shinyoungu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Kirk, J.u University of Central Lancashire4 aut |
| 700 | 1 | a Kobayashi, Masato I. N.u Tohoku University4 aut |
| 700 | 1 | a Konyves, Verau University of Central Lancashire4 aut |
| 700 | 1 | a Kusune, Takayoshiu National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Kwon, Jungmiu University of Tokyo, Japan4 aut |
| 700 | 1 | a Lacaille, Kevinu McMaster University4 aut |
| 700 | 1 | a Law, Chi Yan,d 1990u Chalmers tekniska högskola,Chalmers University of Technology,Chinese University of Hong Kong4 aut0 (Swepub:cth)ychi |
| 700 | 1 | a Lee, Chin-Feiu Academia Sinica Taiwan4 aut |
| 700 | 1 | a Lee, Yong-Heeu East Asian Observatory4 aut |
| 700 | 1 | a Lee, Sang Sungu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Lee, H.u Chungnam National University4 aut |
| 700 | 1 | a Lee, Jeong Eunu Kyung Hee University4 aut |
| 700 | 1 | a Li, Hua-Baiu Chinese University of Hong Kong4 aut |
| 700 | 1 | a Li, D.u Chinese Academy of Sciences4 aut |
| 700 | 1 | a Li, Daleiu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Liu, J.u Nanjing University4 aut |
| 700 | 1 | a Liu, Tieu Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences4 aut |
| 700 | 1 | a Liu, Sheng-Yuanu Academia Sinica Taiwan4 aut |
| 700 | 1 | a Lu, X.u National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Mairs, Steveu East Asian Observatory4 aut |
| 700 | 1 | a Matsumura, Masafumiu Kagawa University4 aut |
| 700 | 1 | a Matthews, B. C.u National Research Council Canada4 aut |
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| 700 | 1 | a Nagata, Tetsuyau Kyoto University4 aut |
| 700 | 1 | a Nakamura, Fumitakau National Astronomical Observatory of Japan4 aut |
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| 700 | 1 | a Ngoc, Nguyen Bichu Vietnam Academy of Science and Technology4 aut |
| 700 | 1 | a Ohashi, Nagayoshiu National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Park, G.u Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Parsons, Harrietu East Asian Observatory4 aut |
| 700 | 1 | a Pyo, Tae-Soou National Astronomical Observatory of Japan4 aut |
| 700 | 1 | a Qian, Leiu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Rao, R.u Academia Sinica Taiwan4 aut |
| 700 | 1 | a Rawlings, J. M.C.u University College London (UCL)4 aut |
| 700 | 1 | a Rawlings, M.G.u East Asian Observatory4 aut |
| 700 | 1 | a Retter, Brendanu Cardiff University4 aut |
| 700 | 1 | a Richer, J.u University Of Cambridge4 aut |
| 700 | 1 | a Rigby, Andrewu Cardiff University4 aut |
| 700 | 1 | a Saito, Hirou University of Tsukuba4 aut |
| 700 | 1 | a Savini, G.u University College London (UCL)4 aut |
| 700 | 1 | a Scaife, A. M. M.u University of Manchester4 aut |
| 700 | 1 | a Seta, Masumichiu Kwansei Gakuin University4 aut |
| 700 | 1 | a Shinnaga, H.u Kagoshima University4 aut |
| 700 | 1 | a Tamura, Motohideu National Astronomical Observatory of Japan4 aut |
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| 700 | 1 | a Tsukamoto, Yusukeu Kagoshima University4 aut |
| 700 | 1 | a Viti, Serenau University College London (UCL)4 aut |
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| 700 | 1 | a Yen, Hsi-Weiu Academia Sinica Taiwan4 aut |
| 700 | 1 | a Yoo, Hyunjuu Korea Astronomy and Space Science Institute4 aut |
| 700 | 1 | a Yuan, Jinghuau Chinese Academy of Sciences4 aut |
| 700 | 1 | a Yun, Hyeong-Siku Kyung Hee University4 aut |
| 700 | 1 | a Zenko, Tetsuyau Kyoto University4 aut |
| 700 | 1 | a Zhang, Guoyinu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Zhang, Chuan-Pengu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Zhang, Yapengu Chinese University of Hong Kong4 aut |
| 700 | 1 | a Zhou, Jianjunu Chinese Academy of Sciences4 aut |
| 700 | 1 | a Zhu, Leiu Chinese Academy of Sciences4 aut |
| 700 | 1 | a De Looze, I.u University College London (UCL)4 aut |
| 700 | 1 | a Dowell, C. D.4 aut |
| 700 | 1 | a Eyres, S.u University of South Wales4 aut |
| 700 | 1 | a Friesen, R.u National Radio Astronomy Observatory4 aut |
| 700 | 1 | a Robitaille, Jean-Françoisu Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Van Loo, Svenu University of Leeds4 aut |
| 710 | 2 | a Universidade do Portob Tokushima University4 org |
| 773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 647q 647x 0004-6361x 1432-0746 |
| 856 | 4 | u http://uhra.herts.ac.uk/bitstream/2299/24133/1/2012.13060v1.pdf |
| 856 | 4 8 | u https://research.chalmers.se/publication/530619 |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/202038624 |
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