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JCMT BISTRO Survey: Magnetic Fields within the Hub-filament Structure in IC 5146
Wang, Jia-Wei1,2; Lai, Shih-Ping1,2; Eswaraiah, Chakali1,2,3; Pattle, Kate1,2; Di Francesco, James4,5; Johnstone, Doug4,5; Koch, Patrick M.6; Liu, Tie7,8; Tamura, Motohide9,10,11; Furuya, Ray S.12,13; Onaka, Takashi10; Ward-Thompson, Derek14; Soam, Archana7,15; Kim, Kee-Tae7; Lee, Chang Won7,16; Lee, Chin-Fei6; Mairs, Steve8; Arzoumanian, Doris17; Kim, Gwanjeong18; Hoang, Thiem7,16; Hwang, Jihye7,16; Liu, Sheng-Yuan6; Berry, David8; Bastien, Pierre19,20; Hasegawa, Tetsuo9; Kwon, Woojin7,16; Qiu, Keping21,22; Andre, Philippe23; Aso, Yusuke10; Byun, Do-Young7,16; Chen, Huei-Ru1,2,6; Chen, Michael C.5; Chen, Wen Ping24; Ching, Tao-Chung3,25; Cho, Jungyeon26; Choi, Minho7; Chrysostomou, Antonio27; Chung, Eun Jung7; Coude, Simon28; Doi, Yasuo29; Dowell, C. Darren30; Drabek-Maunder, Emily31; Duan, Hao-Yuan1,2; Eyres, Stewart P. S.14; Falle, Sam32; Fanciullo, Lapo6; Fiege, Jason33; Franzmann, Erica33; Friberg, Per8; Friesen, Rachel K.34; Fuller, Gary35; Gledhill, Tim27; Graves, Sarah F.8; Greaves, Jane S.31; Griffin, Matt J.31; Gu, Qilao36; Han, Ilseung7,16; Hatchell, Jennifer37; Hayashi, Saeko S.38; Holland, Wayne39,40; Houde, Martin41; Inoue, Tsuyoshi17; Inutsuka, Shu-ichiro17; Iwasaki, Kazunari42; Jeong, Il-Gyo7; Kanamori, Yoshihiro29; Kang, Ji-hyun7; Kang, Miju7; Kang, Sung-ju7; Kataoka, Akimasa43; Kawabata, Koji S.44,45,46; Kemper, Francisca6; Kim, Jongsoo7,16; Kim, Kyoung Hee47; Kim, Mi-Ryang7; Kim, Shinyoung7,16; Kirk, Jason M.14; Kobayashi, Masato I. N.48; Konyves, Vera14; Kwon, Jungmi10; Lacaille, Kevin M.49,50; Lee, Hyeseung26; Lee, Jeong-Eun51; Lee, Sang-Sung7,16; Lee, Yong-Hee51; Li, Dalei52; Li, Di3,53; Li, Hua-bai36; Liu, Hong-Li54; Liu, Junhao21,22; Lyo, A-Ran7; Matsumura, Masafumi55,56; Matthews, Brenda C.4,5; Moriarty-Schieven, Gerald H.4; Nagata, Tetsuya57; Nakamura, Fumitaka43,58; Nakanishi, Hiroyuki59; Ohashi, Nagayoshi38; Park, Geumsook7; Parsons, Harriet8; Pascale, Enzo31; Peretto, Nicolas31; Pon, Andy41; Pyo, Tae-Soo38,58; Qian, Lei3; Rao, Ramprasad6; Rawlings, Mark G.8; Retter, Brendan31; Richer, John60,61; Rigby, Andrew31; Robitaille, Jean-Francois62; Sadavoy, Sarah63; Saito, Hiro64; Savini, Giorgio65; Scaife, Anna M. M.35; Seta, Masumichi66; Shinnaga, Hiroko59; Tang, Ya-Wen6; Tomisaka, Kohji43,58; Tsukamoto, Yusuke59; Van Loo, Sven67; Wang, Hongchi68; Whitworth, Anthony P.31; Yen, Hsi-Wei6; Yoo, Hyunju7; Yuan, Jinghua25; Yun, Hyeong-Sik51; Zenko, Tetsuya57; Zhang, Chuan-Peng25; Zhang, Guoyin3; Zhang, Ya-Peng36; Zhou, Jianjun52; Zhu, Lei3
2019-05-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume876Issue:1Pages:19
Corresponding AuthorWang, Jia-Wei()
AbstractWe present the 850 mu m polarization observations toward the IC 5146 filamentary cloud taken using the Submillimetre Common-User Bolometer Array 2 (SCUBA-2) and its associated polarimeter (POL-2), mounted on the James Clerk Maxwell Telescope, as part of the B-fields In STar forming Regions Observations. This work is aimed at revealing the magnetic field morphology within a core-scale (less than or similar to 1.0 pc) hub-filament structure (HFS) located at the end of a parsec-scale filament. To investigate whether the observed polarization traces the magnetic field in the HFS, we analyze the dependence between the observed polarization fraction and total intensity using a Bayesian approach with the polarization fraction described by the Rice likelihood function, which can correctly describe the probability density function of the observed polarization fraction for low signal-to-noise ratio data. We find a power-law dependence between the polarization fraction and total intensity with an index of 0.56 in A(v) similar to 20-300 mag regions, suggesting that the dust grains in these dense regions can still be aligned with magnetic fields in the IC 5146 regions. Our polarization maps reveal a curved magnetic field, possibly dragged by the contraction along the parsec-scale filament. We further obtain a magnetic field strength of 0.5 +/- 0.2 mG toward the central hub using the Davis-Chandrasekhar-Fermi method, corresponding to a mass-to-flux criticality of similar to 1.3 +/- 0.4 and an Alfvenic Mach number of <0.6. These results suggest that gravity and magnetic field are currently of comparable importance in the HFS and that turbulence is less important.
KeywordISM: individual objects (IC 5146) ISM: magnetic fields ISM: structure polarization radio continuum: ISM stars: formation
DOI10.3847/1538-4357/ab13a2
WOS KeywordGOULD BELT SURVEY ; LINEAR-POLARIZATION ; INFRARED POLARIMETRY ; INTERSTELLAR CLOUDS ; RADIATIVE TORQUES ; MOLECULAR CLOUDS ; GRAIN ALIGNMENT ; STAR-FORMATION ; SCUBA-2 ; CONTAMINATION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000466800100004
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/24691
Collection中国科学院紫金山天文台
Corresponding AuthorWang, Jia-Wei
Affiliation1.Natl Tsing Hua Univ, Inst Astron, Hsinchu 30013, Taiwan
2.Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan
3.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing, Peoples R China
4.NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
5.Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada
6.Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 10617, Taiwan
7.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea
8.East Asian Observ, 660 N Aohoku Pl, Hilo, HI 96720 USA
9.Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan
10.Univ Tokyo, Grad Sch Sci, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
11.Natl Inst Nat Sci, Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
12.Tokushima Univ, Minami Jousanajima Machi 1-1, Tokushima 7708502, Japan
13.Tokushima Univ, Inst Liberal Arts & Sci, Minami Jousanajima Machi 1-1, Tokushima 7708502, Japan
14.Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England
15.NASA, SOFIA Sci Ctr, USRA, Ames Res Ctr, MS N232, Moffett Field, CA 94035 USA
16.Univ Sci & Technol, 217 Gajeong Ro, Daejeon 34113, South Korea
17.Nagoya Univ, Grad Sch Sci, Dept Phys, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648602, Japan
18.Natl Inst Nat Sci, Natl Astron Observ Japan, Nobeyama Radio Observ, Minamisa Ku, Minamimaki, Nagano 3841305, Japan
19.Univ Montreal, Ctr Rech Astrophys Quebec, CP 6128,Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada
20.Univ Montreal, Dept Phys, CP 6128,Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada
21.Nanjing Univ, Sch Astron & Space Sci, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China
22.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210023, Jiangsu, Peoples R China
23.Univ Paris Diderot, CEA Saclay, Serv Astrophys, Lab AIM CEA,DSM,CNRS,IRFU, F-91191 Gif Sur Yvette, France
24.Natl Cent Univ, Inst Astron, Chungli 32054, Taiwan
25.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China
26.Chungnam Natl Univ, Dept Astron & Space Sci, 99 Daehak Ro, Daejeon 34134, South Korea
27.Univ Hertfordshire, Sch Phys Astron & Math, Coll Lane, Hatfield AL10 9AB, Herts, England
28.NASA, SOFIA Sci Ctr, Univ Space Res Assoc, Ames Res Ctr, MS N232-12, Moffett Field, CA 94035 USA
29.Univ Tokyo, Grad Sch Arts & Sci, Dept Earth Sci & Astron, Meguro Ku, 3-8-1 Komaba, Tokyo 1538902, Japan
30.Jet Prop Lab, MS 169-506,4800 Oak Grove Dr, Pasadena, CA 91109 USA
31.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
32.Univ Leeds, Dept Appl Math, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
33.Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
34.Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA
35.Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Oxford Rd, Manchester M13 9PL, Lancs, England
36.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China
37.Univ Exeter, Phys & Astron, Stocker Rd, Exeter EX4 4QL, Devon, England
38.Natl Astron Observ Japan, Subaru Telescope, 650 N Aohoku Pl, Hilo, HI 96720 USA
39.Royal Observ, UK Astron Technol Ctr, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland
40.Univ Edinburgh, Inst Astron, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland
41.Univ Western Ontario, Dept Phys & Astron, 1151 Richmond St, London, ON N6A 3K7, Canada
42.Doshisha Univ, Dept Environm Syst Sci, Miyakodani 1-3, Kyoto 6100394, Japan
43.Natl Astron Observ Japan, Div Theoret Astron, Mitaka, Tokyo 1818588, Japan
44.Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Kagamiyama 1-3-1, Hiroshima 7398526, Japan
45.Hiroshima Univ, Dept Phys, Kagamiyama 1-3-1, Hiroshima 7398526, Japan
46.Hiroshima Univ, Core Res Energet Universe CORE U, Kagamiyama 1-3-1, Hiroshima 7398526, Japan
47.Korea Natl Univ Educ, Dept Earth Sci Educ, 250 Taeseongtabyeon Ro, Cheongju 28173, Chungbuk, South Korea
48.Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, 1-1 Machikaneyama Cho, Toyonaka, Osaka, Japan
49.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
50.Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada
51.Kyung Hee Univ, Sch Space Res, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi Do, South Korea
52.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
53.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
54.Chinese Acad Sci, South Amer Ctr Astrophys, Camino El Observ 1515, Santiago, Chile
55.Kagawa Univ, Fac Educ, Saiwai Cho 1-1, Takamatsu, Kagawa 7608522, Japan
56.Kagawa Univ, Ctr Educ Dev & Support, Saiwai Cho 1-1, Takamatsu, Kagawa 7608522, Japan
57.Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan
58.SOKENDAI Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan
59.Kagoshima Univ, AGARC, 1-21-35 Korimoto, Kagoshima 8900065, Japan
60.Cavendish Lab, Astrophys Grp, JJ Thomson Ave, Cambridge CB3 0HE, England
61.Univ Cambridge, Kavli Inst Cosmol, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
62.Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
63.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
64.Tokyo Gakugei Univ, Dept Astron & Earth Sci, Koganei, Tokyo 1848501, Japan
65.UCL, Dept Phys & Astron, OSL, London WC1E 6BT, England
66.Kwansei Gakuin Univ, Sch Sci & Technol, Dept Phys, 2-1 Gakuen, Sanda, Hyogo 6691337, Japan
67.Univ Leeds, Sch Phys & Astron, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
68.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jia-Wei,Lai, Shih-Ping,Eswaraiah, Chakali,et al. JCMT BISTRO Survey: Magnetic Fields within the Hub-filament Structure in IC 5146[J]. ASTROPHYSICAL JOURNAL,2019,876(1):19.
APA Wang, Jia-Wei.,Lai, Shih-Ping.,Eswaraiah, Chakali.,Pattle, Kate.,Di Francesco, James.,...&Zhu, Lei.(2019).JCMT BISTRO Survey: Magnetic Fields within the Hub-filament Structure in IC 5146.ASTROPHYSICAL JOURNAL,876(1),19.
MLA Wang, Jia-Wei,et al."JCMT BISTRO Survey: Magnetic Fields within the Hub-filament Structure in IC 5146".ASTROPHYSICAL JOURNAL 876.1(2019):19.
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