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| JCMT POL-2 and BISTRO Survey Observations of Magnetic Fields in the L1689 Molecular Cloud | |
Pattle, Kate1,2,3; Lai, Shih-Ping2,3,4; Di Francesco, James5,6; Sadavoy, Sarah7; Ward-Thompson, Derek8; Johnstone, Doug5,6; Hoang, Thiem9,10; Arzoumanian, Doris11; Bastien, Pierre12,13; Bourke, Tyler L.14,15; Coude, Simon16; Doi, Yasuo17; Eswaraiah, Chakali18,19; Fanciullo, Lapo4; Furuya, Ray S.20; Hwang, Jihye9,10; Hull, Charles L. H.21,22; Kang, Jihyun9; Kim, Kee-Tae9,10; Kirchschlager, Florian23; Kwon, Jungmi24; Kwon, Woojin9,25; Lee, Chang Won9,10; Liu, Tie26; Redman, Matt1; Soam, Archana16; Tahani, Mehrnoosh27; Tamura, Motohide24,28,29; Tang, Xindi30
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| 2021-02-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 907Issue:2Pages:88 |
| Contribution Rank | 30 |
| Abstract | We present 850 mu m polarization observations of the L1689 molecular cloud, part of the nearby Ophiuchus molecular cloud complex, taken with the POL-2 polarimeter on the James Clerk Maxwell Telescope (JCMT). We observe three regions of L1689: the clump L1689N which houses the IRAS 16293-2433 protostellar system, the starless clump SMM-16, and the starless core L1689B. We use the Davis-Chandrasekhar-Fermi method to estimate plane-of-sky field strengths of 366 +/- 55 mu G in L1689N, 284 +/- 34 mu G in SMM-16, and 72 +/- 33 mu G in L1689B, for our fiducial value of dust opacity. These values indicate that all three regions are likely to be magnetically transcritical with sub-Alfvenic turbulence. In all three regions, the inferred mean magnetic field direction is approximately perpendicular to the local filament direction identified in Herschel Space Telescope observations. The core-scale field morphologies for L1689N and L1689B are consistent with the cloud-scale field morphology measured by the Planck Space Observatory, suggesting that material can flow freely from large to small scales for these sources. Based on these magnetic field measurements, we posit that accretion from the cloud onto L1689N and L1689B may be magnetically regulated. However, in SMM-16, the clump-scale field is nearly perpendicular to the field seen on cloud scales by Planck, suggesting that it may be unable to efficiently accrete further material from its surroundings. |
| Keyword | Star formation Interstellar magnetic fields Molecular clouds Interstellar medium Polarimetry Submillimeter astronomy Star-forming regions |
| DOI | 10.3847/1538-4357/abcc6c |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | GOULD BELT SURVEY ; STARLESS CORES ; INTERSTELLAR CLOUDS ; RADIATIVE TORQUES ; INFALL MOTIONS ; CS 2-1 ; POLARIZATION ; N2H+ ; IRAS-16293-2422 ; OPHIUCHUS |
| Funding Project | Ministry of Science and Technology (Taiwan)[107-2119-M-001-031-MY3] ; Ministry of Science and Technology (Taiwan)[109-2112-M-007-010-MY3] ; Ministry of Science and Technology (Taiwan)[106-2119-M-007-021-MY3] ; National Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; National Research Foundation of Korea (NRF) - Korea government (MSIT) through the Mid-career Research Program[2019R1A2C1087045] ; FCT/MCTES through national funds (PIDDAC)[UID/FIS/04434/2019] ; FCT/MCTES through national funds (PIDDAC)[UIDB/04434/2020] ; Japan Society for the Promotion of Science (JSPS)[18H01250] ; Academia Sinica[AS-IA-106-M03] ; NAOJ Fellowship ; JSPS KAKENHI[18K13586] ; JSPS KAKENHI[20K14527] ; JSPS KAKENHI[19K14775] ; JSPS KAKENHI[18H05442] ; JSPS KAKENHI[15H02063] ; JSPS KAKENHI[22000005] ; New Faculty Startup Fund from Seoul National University ; Basic Science Research Program through the NRF[NRF-2016R1C1B2013642] ; Basic Science Research Program through the NRF - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; Chinese Academy of Sciences[114231KYSB20200009] ; National Natural Science Foundation of China (NSFC)[12073061] ; National Science Foundation (NSF)[AST-1715876] ; Japan Society for Promotion of Science[KAKENHI 19H0193810] ; National Key R&D Program of China[2017YFA0402700] ; Science and Technology Facilities Council of the United Kingdom |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000613660200001 |
| Publisher | IOP PUBLISHING LTD |
| Funding Organization | Ministry of Science and Technology (Taiwan) ; National Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; National Research Foundation of Korea (NRF) - Korea government (MSIT) through the Mid-career Research Program ; FCT/MCTES through national funds (PIDDAC) ; Japan Society for the Promotion of Science (JSPS) ; Academia Sinica ; NAOJ Fellowship ; JSPS KAKENHI ; New Faculty Startup Fund from Seoul National University ; Basic Science Research Program through the NRF ; Basic Science Research Program through the NRF - Ministry of Education, Science and Technology ; Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; National Science Foundation (NSF) ; Japan Society for Promotion of Science ; National Key R&D Program of China ; Science and Technology Facilities Council of the United Kingdom |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3845 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 |
| Corresponding Author | Pattle, Kate |
| Affiliation | 1.Natl Univ Ireland Galway, Ctr Astron, Univ Rd, Galway, Ireland 2.Natl Tsing Hua Univ, Inst Astron, 101,Sect 2,Guangfu Rd, Hsinchu 30013, Taiwan 3.Natl Tsing Hua Univ, Dept Phys, 101,Sect 2,Guangfu Rd, Hsinchu 30013, Taiwan 4.Acad Sinica, Inst Astron & Astrophys, 1,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan 5.NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada 6.Univ Victoria, Dept Phys & Astron, Victoria, BC V8W 2Y2, Canada 7.Queens Univ, Dept Phys Engn Phys & Astrophys, Kingston, ON K7L 3N6, Canada 8.Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England 9.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea 10.Univ Sci & Technol, 217 Gajeong Ro, Daejeon 34113, South Korea 11.Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, PT-4150762 Porto, Portugal 12.Univ Montreal, Ctr Rech Astrophys Quebec, CP 6128 Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada 13.Univ Montreal, Dept Phys, CP 6128 Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada 14.Jodrell Bank, SKA Org, Macclesfield SK11 9FT, Cheshire, England 15.Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England 16.NASA, SOFIA Sci Ctr, Univ Space Res Assoc, Ames Res Ctr, Moffett Field, CA 94035 USA 17.Univ Tokyo, Grad Sch Arts & Sci, Dept Earth Sci & Astron, Meguro Ku, 3-8-1 Komaba, Tokyo 1538902, Japan 18.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing, Peoples R China 19.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China 20.Tokushima Univ, Inst Liberal Arts & Sci, Minami Jousanajima Machi 1-1, Tokushima 7708502, Japan 21.NAOJ Chile, Natl Astron Observ Japan, Alonso de Cordova 3788,Off 61B, Santiago 7630422, Chile 22.Joint ALMA Observ, Alonso de Cordova 3107, Santiago, Chile 23.UCL, Dept Phys & Astron, London WC1E 6BT, England 24.Univ Tokyo, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan 25.Seoul Natl Univ, Dept Earth Sci Educ, 1 Gwanak Ro, Seoul 08826, South Korea 26.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China 27.Natl Res Council Canada, Herzberg Astron & Astrophys Res Ctr, Domin Radio Astrophys Observ, POB 248, Penticton, BC V2A 6J9, Canada 28.Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 29.Natl Astron Observ, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 30.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| Recommended Citation GB/T 7714 | Pattle, Kate,Lai, Shih-Ping,Di Francesco, James,et al. JCMT POL-2 and BISTRO Survey Observations of Magnetic Fields in the L1689 Molecular Cloud[J]. ASTROPHYSICAL JOURNAL,2021,907(2):88. |
| APA | Pattle, Kate.,Lai, Shih-Ping.,Di Francesco, James.,Sadavoy, Sarah.,Ward-Thompson, Derek.,...&Tang, Xindi.(2021).JCMT POL-2 and BISTRO Survey Observations of Magnetic Fields in the L1689 Molecular Cloud.ASTROPHYSICAL JOURNAL,907(2),88. |
| MLA | Pattle, Kate,et al."JCMT POL-2 and BISTRO Survey Observations of Magnetic Fields in the L1689 Molecular Cloud".ASTROPHYSICAL JOURNAL 907.2(2021):88. |
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| Pattle-2021-JCMT POL（2181KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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