Institutional Repository of Radio Astronomy Research Laboratory
| Magnetic Fields in the Central Molecular Zone Influenced by Feedback and Weakly Correlated with Star Formation | |
Lu, Xing1; Liu, Junhao2,3; Pillai, Thushara2; Zhang, Qizhou1; Liu, Tie1,6; Gu, Qilao1; Hasegawa, Tetsuo2; Li, Pak Shing1; Tang, Xindi1,10 ; Hatchfield, H. Perry1,10; Issac, Namitha1; Liu, Xunchuan1; Luo, Qiuyi1,10; Mai, Xiaofeng1,10; Shen, Zhiqiang1,6
| |
| 2024-02-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
 |
| ISSN | 0004-637X |
| Volume | 962Issue:1Pages:39 |
| Contribution Rank | 7 |
| Abstract | Magnetic fields of molecular clouds in the central molecular zone (CMZ) have been relatively under-observed at sub-parsec resolution. Here, we report JCMT/POL2 observations of polarized dust emission in the CMZ, which reveal magnetic field structures in dense gas at similar to 0.5 pc resolution. The 11 molecular clouds in our sample include two in the western part of the CMZ (Sgr C and a farside cloud candidate), four around the Galactic longitude 0 (the 50 km s-1 cloud, CO 0.02-0.02, the Stone, and the Sticks and Straw among the Three Little Pigs), and five along the Dust Ridge (G0.253+0.016, clouds b, c, d, and e/f), for each of which we estimate the magnetic field strength using the angular dispersion function method. The morphologies of magnetic fields in the clouds suggest potential imprints of feedback from expanding H ii regions and young massive star clusters. A moderate correlation between the total viral parameter versus the star formation rate (SFR) and the dense gas fraction of the clouds is found. A weak correlation between the mass-to-flux ratio and the SFR, and a weak anticorrelation between the magnetic field and the dense gas fraction are also found. Comparisons between magnetic fields and other dynamic components in clouds suggest a more dominant role of self-gravity and turbulence in determining the dynamical states of the clouds and affecting star formation at the studied scales. |
| DOI | 10.3847/1538-4357/ad1395 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | JCMT BISTRO SURVEY ; H II REGIONS ; GALACTIC-CENTER ; FORMATION RATES ; ALMA OBSERVATIONS ; CLOUD EVOLUTION ; MASSIVE CLOUDS ; POLARIZATION ; GAS ; DYNAMICS |
| Funding Project | National Key R&D Program of China[2022YFA1603101] ; Natural Science Foundation of Shanghai[23ZR1482100] ; National Natural Science Foundation of China (NSFC)[12273090] ; National Natural Science Foundation of China (NSFC)[12322305] ; National Natural Science Foundation of China (NSFC)[12073061] ; National Natural Science Foundation of China (NSFC)[12122307] ; Chinese Academy of Sciences (CAS) Light of West China Program[xbzg-zdsys-202212] ; KAKENHI of JSPS[JP23H01221] ; National Science Foundation[2206512] ; Chinese Academy of Sciences[114231KYSB20200009] ; Chinese Academy of Sciences[XDB09000000] ; Shanghai Pujiang Program[20PJ1415500] ; Science and Technology Facilities Council of the United Kingdom |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001156880000001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | National Key R&D Program of China ; Natural Science Foundation of Shanghai ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) Light of West China Program ; KAKENHI of JSPS ; National Science Foundation ; Chinese Academy of Sciences ; Shanghai Pujiang Program ; Science and Technology Facilities Council of the United Kingdom |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5773 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 |
| Corresponding Author | Lu, Xing; Liu, Junhao |
| Affiliation | 1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Natl Astron Observ Japan, 2-21-1 Osawa,Mitaka Ku, Tokyo 1818588, Japan 3.East Asian Observ, 660 N Aohoku Pl,Univ Pk, Hilo, HI 96720 USA 4.MIT, Haystack Observ, 99 Millstone Rd, Westford, MA 01886 USA 5.Ctr Astrophys, Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA 6.Chinese Acad Sci, Key Lab Radio Astron & Technol, A20 Datun Rd, Beijing 100101, Peoples R China 7.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 8.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA 9.Univ Connecticut, Dept Phys, 196A Auditorium Rd,Unit 3046, Storrs, CT 06269 USA 10.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Lu, Xing,Liu, Junhao,Pillai, Thushara,et al. Magnetic Fields in the Central Molecular Zone Influenced by Feedback and Weakly Correlated with Star Formation[J]. ASTROPHYSICAL JOURNAL,2024,962(1):39. |
| APA | Lu, Xing.,Liu, Junhao.,Pillai, Thushara.,Zhang, Qizhou.,Liu, Tie.,...&Shen, Zhiqiang.(2024).Magnetic Fields in the Central Molecular Zone Influenced by Feedback and Weakly Correlated with Star Formation.ASTROPHYSICAL JOURNAL,962(1),39. |
| MLA | Lu, Xing,et al."Magnetic Fields in the Central Molecular Zone Influenced by Feedback and Weakly Correlated with Star Formation".ASTROPHYSICAL JOURNAL 962.1(2024):39. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Lu-2024-Magnetic Fie（3423KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment