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| Magnetic Fields in Giant Filaments Probed by the Velocity Gradient Technique: Regular Magnetic Field Interrupted by Magnetization Gaps | |
Zhao, Mengke1,2; Li, Guang-Xing3; Zhou, Jianjun1,4,5 ; Tang, Xindi1,2,4,5; Esimbek, Jarken1,4,5; He, Yuxin1,2,4,5; Li, Dalei1,2,4,5; Ji, Weiguang1; Chang, Zhengxue6; Tursun, Kadirya1
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| 2024 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 961Issue:1Pages:124 |
| Contribution Rank | 1 |
| Abstract | We study the magnetic field structures in six giant filaments associated with the spiral arms of the Milky Way by applying the velocity gradient technique (VGT) to the 13CO spectroscopic data from the GRS, FUGIN, and SEDIGSM surveys. Unlike dust-polarized emission, the VGT allows us to separate the foreground and background using the velocity information, from which the orientation of the magnetic field can be reliably determined. We find that in most cases the magnetic fields stay aligned with the filament bodies, which are parallel to the disk midplane. Among these, G29, G47, and G51 exhibit smooth magnetic fields, and G24, G339, and G349 exhibit discontinuities. The fact that most filaments have magnetic fields that stay aligned with the Galactic disk midplane suggests that Galactic shear may be responsible for shaping the filaments. The fact that the magnetic field can stay regular at the resolution of our analysis (less than or similar to 10 pc), where the turbulence crossing time is short compared to the shear time, suggests that turbulent motion cannot effectively disrupt the regular orientation of the magnetic field. The discontinuities found in some filaments can be caused by processes including filament reassembly, gravitational collapse, and stellar feedback. |
| DOI | 10.3847/1538-4357/ad09df |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | GRAVITATIONAL COLLAPSE ; GALACTIC PLANE ; INTERSTELLAR-MEDIUM ; MOLECULAR CLOUDS ; STAR-FORMATION ; TURBULENCE ; GALAXY ; SIMULATIONS ; KINEMATICS ; COLLISIONS |
| Funding Project | National Key R & D Program of China[2022YFA1603103] ; National Natural Science Foundation of China (NSFC)[W820301904265] ; National Natural Science Foundation of China (NSFC)[12033005] ; National Natural Science Foundation of China (NSFC)[11973076] ; National Natural Science Foundation of China (NSFC)[12173075] ; National Natural Science Foundation of China (NSFC)[12103082,12303027] ; Tianshan Talent Program of Xinjiang Uygur Autonomous Region[2022TSYCLJ0005] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01E06] ; Chinese Academy of Sciences (CAS) Light of West China Program[xbzg-zdsys-202212] ; Chinese Academy of Sciences (CAS) Light of West China Program[2020-XBQNXZ-017] ; Chinese Academy of Sciences (CAS) Light of West China Program[2021-XBQNXZ-028] ; Xinjiang Key Laboratory of Radio Astrophysics[2023D04033] ; Youth Innovation Promotion Association CAS ; Regional Collaborative Innovation Project of Xinjiang Uyghur Autonomous Region[2022E01050] ; Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Hebei NSF[A2022109001] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001144243700001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | National Key R & D Program of China ; National Natural Science Foundation of China (NSFC) ; Tianshan Talent Program of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Chinese Academy of Sciences (CAS) Light of West China Program ; Xinjiang Key Laboratory of Radio Astrophysics ; Youth Innovation Promotion Association CAS ; Regional Collaborative Innovation Project of Xinjiang Uyghur Autonomous Region ; Project of Xinjiang Uygur Autonomous Region of China for Flexibly Fetching in Upscale Talents ; Hebei NSF |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5722 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 |
| Corresponding Author | Zhao, Mengke; Li, Guang-Xing; Zhou, Jianjun |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yunnan Univ, South Western Inst Astron Res, Kunming 650500, Yunnan, Peoples R China 4.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China 5.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China 6.Handan Univ, Coll Math & Phys, 530 Xueyuan Rd, Handan 056005, 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,Li, Guang-Xing,Zhou, Jianjun,et al. Magnetic Fields in Giant Filaments Probed by the Velocity Gradient Technique: Regular Magnetic Field Interrupted by Magnetization Gaps[J]. ASTROPHYSICAL JOURNAL,2024,961(1):124. |
| APA | Zhao, Mengke.,Li, Guang-Xing.,Zhou, Jianjun.,Tang, Xindi.,Esimbek, Jarken.,...&Tursun, Kadirya.(2024).Magnetic Fields in Giant Filaments Probed by the Velocity Gradient Technique: Regular Magnetic Field Interrupted by Magnetization Gaps.ASTROPHYSICAL JOURNAL,961(1),124. |
| MLA | Zhao, Mengke,et al."Magnetic Fields in Giant Filaments Probed by the Velocity Gradient Technique: Regular Magnetic Field Interrupted by Magnetization Gaps".ASTROPHYSICAL JOURNAL 961.1(2024):124. |
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| Zhao-2024-Magnetic F（2708KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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