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The JCMT BISTRO-3 Survey: Variation of Magnetic Field Orientations on Parsec and Subparsec Scales in the Massive Star-forming Region G28.34+0.06

文献类型：期刊论文

作者Hwang, Jihye1,18,19; Pattle, Kate17; Lee, Chang Won1,16; Karoly, Janik17; Kim, Kee-Tae1,16; Kim, Jongsoo1; Liu, Junhao15; Qiu, Keping13,14; Lyo, A-Ran1; Eden, David11,12
刊名ASTROPHYSICAL JOURNAL
出版日期2025-06-01
卷号985期号:2页码:222
ISSN号0004-637X
DOI10.3847/1538-4357/adce80
产权排序34
英文摘要Magnetic fields play a significant role in star-forming processes on core to clump scales. We investigate magnetic field orientations and strengths in the massive star-forming clump P2 within the filamentary infrared dark cloud G28.34+0.06 using dust polarization observations made using SCUBA-2/POL-2 on the James Clerk Maxwell Telescope (JCMT) as part of the B-field In STar-forming Region Observations (or BISTRO) survey. We compare the magnetic field orientations at the clump scale of similar to 2 pc from these JCMT observations with those at the core scale of similar to 0.2 pc from archival Atacama Large Millimeter/submillimeter Array data, finding that the magnetic field orientations on these two different scales are perpendicular to one another. We estimate the distribution of magnetic field strengths, which range from 50 to 430 mu G over the clump. The region forming the core shows the highest magnetic field strength. We also obtain the distribution of mass-to-flux ratios across the clump. In the region surrounding the core, the mass-to-flux ratio is larger than 1, which indicates that the magnetic field strength is insufficient to support the region against gravitational collapse. Therefore, the change in the magnetic field orientation from clump to core scales may be the result of gravitational collapse, with the field being pulled inward along with the flow of material under gravity.
WOS关键词SCUBA-2 ; CLOUDS ; POLARIZATION ; STRENGTH ; GRAVITY ; LINE
资助项目Korea Astronomy and Space Science Institute ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001497251100001
出版者IOP Publishing Ltd
资助机构Korea Astronomy and Space Science Institute ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation
源URL[http://ir.xao.ac.cn/handle/45760611-7/7795]  
专题恒星形成与演化研究团组
通讯作者Hwang, Jihye
作者单位1.Korea Astron & Space Sci Inst KASI, 776 Daedeokdae Ro, Daejeon 34055, South Korea
2.Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA
3.Worcester State Univ, Dept Earth Environm & Phys, Worcester, MA 01602 USA
4.Univ Victoria, Dept Phys & Astron, Victoria, BC V8W 2Y2, Canada
5.NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
6.Univ La Laguna ULL, Dept Astrofis, E-38206 San Cristobal la Laguna, Tenerife, Spain
7.Inst Astrofisica Canarias, E-38205 Tenerife, Canarias Island, Spain
8.Chinese Acad Sci, CAS Key Lab FAST, Natl Astron Observ, Beijing, Peoples R China
9.Natl Astron Observ Japan, Div Sci, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
10.Acad Sinica, Inst Astron & Astrophys, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan
推荐引用方式
GB/T 7714		 Hwang, Jihye,Pattle, Kate,Lee, Chang Won,et al. The JCMT BISTRO-3 Survey: Variation of Magnetic Field Orientations on Parsec and Subparsec Scales in the Massive Star-forming Region G28.34+0.06[J]. ASTROPHYSICAL JOURNAL,2025,985(2):222.
APA Hwang, Jihye.,Pattle, Kate.,Lee, Chang Won.,Karoly, Janik.,Kim, Kee-Tae.,...&Berry, David.(2025).The JCMT BISTRO-3 Survey: Variation of Magnetic Field Orientations on Parsec and Subparsec Scales in the Massive Star-forming Region G28.34+0.06.ASTROPHYSICAL JOURNAL,985(2),222.
MLA Hwang, Jihye,et al."The JCMT BISTRO-3 Survey: Variation of Magnetic Field Orientations on Parsec and Subparsec Scales in the Massive Star-forming Region G28.34+0.06".ASTROPHYSICAL JOURNAL 985.2(2025):222.

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