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| The impact of expanding HII regions on filament G37. Curved magnetic field and multiple direction material flows | |
Zhao, Mengke1,2,3,6; Tang, Xindi2,3,4,5 ; Qiu, Keping1,6; He, Yuxin2,3,4,5; Li, Dalei2,3,4,5
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| 2025-04-25 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
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| ISSN | 0004-6361 |
| Volume | 696Pages:A178 |
| Contribution Rank | 2 |
| Abstract | Filament G37 exhibits a distinctive "caterpillar" shape, characterized by two semicircular structures within its 40 pc-long body, and provides an ideal target to investigate the formation and evolution of filaments. By analyzing multiple observational data, such as the CO spectral line, the H alpha radio recombination line, and the multiwavelength continuum, we find that the expanding H II regions that surround filament G37 exert pressure on the structure of the filament body, which kinetic process present as the gas flows in multiple directions along the skeleton of the filament body. The curved magnetic field structure of filament G37 derived by employing the velocity gradient technique with CO is found to be parallel to the filament body and support the pressure from expanded H II regions. The multidirectional flows in filament G37 could cause the accumulation and subsequent collapse of gas, which would result in the formation of massive clumps. The curved structure and star formation observed in filament G37 are likely to be a result of the filament body being squeezed by the expanding H II region. This physical process occurs over a timescale of approximately 5 Myr. Filament G37 provides a potential candidate for end-dominated collapse. |
| Keyword | stars: formation ISM: clouds evolution HII regions ISM: magnetic fields |
| DOI | 10.1051/0004-6361/202450965 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | JCMT BISTRO SURVEY ; GALACTIC PLANE ; GRAVITATIONAL COLLAPSE ; VELOCITY-GRADIENTS ; MOLECULAR CLOUDS ; CORE FORMATION ; ORION ; COHERENT ; DENSITY ; PC |
| Funding Project | National Key R&D Program of China[2023YFA1608002] ; National Key R&D Program of China[2023YFA1608204] ; National Key R&D Program of China[2022YFA1603100] ; Chinese Academy of Sciences (CAS) alight of West Chinaa Program[xbzg-zdsys-202212] ; Tianshan Talent Program of Xinjiang Uygur Autonomous Region[2022TSYCLJ0005] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01E06] ; Xinjiang Key Laboratory of Radio Astrophysics[2023D04033] ; National Natural Science Foundation of China[12173075] ; National Natural Science Foundation of China[12425304] ; National Natural Science Foundation of China[U1731237] ; Youth Innovation Promotion Association CAS |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001476794000021 |
| Publisher | EDP SCIENCES S A |
| Funding Organization | National Key R&D Program of China ; Chinese Academy of Sciences (CAS) alight of West Chinaa Program ; Tianshan Talent Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Xinjiang Key Laboratory of Radio Astrophysics ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7728 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 |
| Corresponding Author | Zhao, Mengke; Tang, Xindi |
| Affiliation | 1.Nanjing Univ, Sch Astron & Space Sci, 163 Xianlin Ave, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Key Lab Radio Astron & Technol, A20 Datun Rd, Beijing 100101, Peoples R China 5.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China 6.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210023, Jiangsu, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Zhao, Mengke,Tang, Xindi,Qiu, Keping,et al. The impact of expanding HII regions on filament G37. Curved magnetic field and multiple direction material flows[J]. ASTRONOMY & ASTROPHYSICS,2025,696:A178. |
| APA | Zhao, Mengke,Tang, Xindi,Qiu, Keping,He, Yuxin,&Li, Dalei.(2025).The impact of expanding HII regions on filament G37. Curved magnetic field and multiple direction material flows.ASTRONOMY & ASTROPHYSICS,696,A178. |
| MLA | Zhao, Mengke,et al."The impact of expanding HII regions on filament G37. Curved magnetic field and multiple direction material flows".ASTRONOMY & ASTROPHYSICS 696(2025):A178. |
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| Zhao-2025-The impact（2354KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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