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A Tale of Three: Magnetic Fields along the Orion Integral-shaped Filament as Revealed by the JCMT BISTRO Survey

文献类型：期刊论文

作者Wu, Jintai103,104; Qiu, Keping103,104; Poidevin, Frederick101,102; Bastien, Pierre99,100; Liu, Junhao98; Ching, Tao-Chung97; Bourke, Tyler L.95,96; Ward-Thompson, Derek94; Pattle, Kate93; Johnstone, Doug91,92
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2024-12-20
卷号977期号:2页码:L31
ISSN号2041-8205
DOI10.3847/2041-8213/ad93d2
产权排序72
英文摘要As part of the B-fields In Star-forming Region Observations survey, we present James Clerk Maxwell Telescope (JCMT) 850 mu m polarimetric observations toward the Orion integral-shaped filament (ISF) that covers three portions known as OMC-1, OMC-2, and OMC-3. The magnetic field threading the ISF seen in the JCMT POL-2 map appears as a tale of three: pinched for OMC-1, twisted for OMC-2, and nearly uniform for OMC-3. A multiscale analysis shows that the magnetic field structure in OMC-3 is very consistent at all the scales, whereas the field structure in OMC-2 shows no correlation across different scales. In OMC-1, the field retains its mean orientation from large to small scales but shows some deviations at small scales. Histograms of relative orientations between the magnetic field and filaments reveal a bimodal distribution for OMC-1, a relatively random distribution for OMC-2, and a distribution with a predominant peak at 90 degrees for OMC-3. Furthermore, the magnetic fields in OMC-1 and OMC-3 both appear to be aligned perpendicular to the fibers, which are denser structures within the filament, but the field in OMC-2 is aligned along with the fibers. All these suggest that gravity, turbulence, and magnetic field are each playing a leading role in OMC-1, 2, and 3, respectively. While OMC-2 and 3 have almost the same gas mass, density, and nonthermal velocity dispersion, there are on average younger and fewer young stellar objects in OMC-3, providing evidence that a stronger magnetic field will induce slower and less efficient star formation in molecular clouds.
WOS关键词FORMING MOLECULAR CLOUDS ; STAR-FORMATION ; MU-M ; DUST POLARIZATION ; SCUBA-2 ; OMC-1 ; STRENGTH ; I. ; POLARIMETER ; COMPONENTS
资助项目National Natural Science Foundation of China (NSFC)[12425304] ; National Natural Science Foundation of China (NSFC)[U1731237] ; National Key R&D Program of China[2017YFA0402700] ; National Key R&D Program of China[2023YFA1608204] ; National Key R&D Program of China[2022YFA1603103] ; China Manned Space Project[CMS-CSST-2021-B06] ; NRC Canada ; NSERC Discovery Grant ; Basic Science Research Program through the NRF - Ministry of Education, Science and Technology[NRF- 2019R1A2C1010851] ; Korea Astronomy and Space Science Institute - Korea government (MSIT)[2024-1-841-00] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[RS-2024-00342488] ; National Science and Technology Council of Taiwan[109-2112-M-007-010-MY3] ; National Science and Technology Council of Taiwan[112-2112-M-007-011] ; National Science and Technology Council of Taiwan[113-2112-M-007-004] ; international Gemini Observatory, a program of NSF NOIRLab ; U.S. National Science Foundation ; Science and Engineering Research Board (SERB)[RJF/2020/000071] ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; [URF\R1\211322]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001492149500001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; China Manned Space Project ; NRC Canada ; NSERC Discovery Grant ; Basic Science Research Program through the NRF - Ministry of Education, Science and Technology ; Korea Astronomy and Space Science Institute - Korea government (MSIT) ; National Research Foundation of Korea (NRF) - Korea government (MSIT) ; National Science and Technology Council of Taiwan ; international Gemini Observatory, a program of NSF NOIRLab ; U.S. National Science Foundation ; Science and Engineering Research Board (SERB) ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation
源URL[http://ir.xao.ac.cn/handle/45760611-7/7780]  
专题恒星形成与演化研究团组
通讯作者Qiu, Keping
作者单位1.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China
2.Univ Leeds, Sch Phys & Astron, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
3.Univ Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
4.Univ Leeds, Dept Appl Math, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
5.Univ South Wales, Pontypridd CF37 1DL, M Glam, Wales
6.Jet Prop Lab, MS 169-506,4800 Oak Grove Dr, Pasadena, CA 91109 USA
7.Univ Paris Diderot, Labo AIM CEA, Serv Astrophys, DSM,CNRS,IRFU,CEA Saclay, F-91191 Gif Sur Yvette, France
8.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
9.UCL, Dept Phys & Astron, London WC1E 6BT, England
10.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
推荐引用方式
GB/T 7714		 Wu, Jintai,Qiu, Keping,Poidevin, Frederick,et al. A Tale of Three: Magnetic Fields along the Orion Integral-shaped Filament as Revealed by the JCMT BISTRO Survey[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,977(2):L31.
APA Wu, Jintai.,Qiu, Keping.,Poidevin, Frederick.,Bastien, Pierre.,Liu, Junhao.,...&van Loo, Sven.(2024).A Tale of Three: Magnetic Fields along the Orion Integral-shaped Filament as Revealed by the JCMT BISTRO Survey.ASTROPHYSICAL JOURNAL LETTERS,977(2),L31.
MLA Wu, Jintai,et al."A Tale of Three: Magnetic Fields along the Orion Integral-shaped Filament as Revealed by the JCMT BISTRO Survey".ASTROPHYSICAL JOURNAL LETTERS 977.2(2024):L31.

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