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The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud

文献类型：期刊论文

作者Yang, Dongting30; Liu, Hong-Li30; Liu, Tie29; Tej, Anandmayee28; Liu, Xunchuan29; He JH(何金华)27; Garay, Guido26; Stutz, Amelia24,25; Zhu, Lei23; Qin, Sheng-Li30
刊名ASTROPHYSICAL JOURNAL
出版日期2024-12-01
卷号976期号:2
ISSN号0004-637X
DOI10.3847/1538-4357/ad8919
产权排序第4完成单位
文献子类Article
英文摘要In this paper, we present a detailed analysis of the IRS 17 filament within the intermediate-mass protocluster IRAS 08448-4343 (of similar to 10(3)L(circle dot)), using ALMA data from the ATOMS 3 mm and QUARKS 1.3 mm surveys. The IRS 17 filament, which spans similar to 54,000 au (0.26 pc) in length and similar to 4000 au (0.02 pc) in width, exhibits a complex, multicomponent velocity field and harbors hierarchical substructures. These substructures include three bundles of seven velocity-coherent fibers and 29 dense (n similar to 10(8) cm(-3)) condensations. The fibers have a median length of similar to 4500 au and a median width of similar to 1400 au. Among these fibers, four are identified as fertile, each hosting at least three dense condensations, which are regarded as the seeds of star formation. While the detected cores are randomly spaced within the IRS 17 filament based on the 3 mm dust continuum image, periodic spacing (similar to 1600 au) of condensations is observed in the fertile fibers according to the 1.3 mm dust map, consistent with the predictions of linear isothermal cylinder fragmentation models. These findings underscore the crucial role of fibers in star formation and suggest a hierarchical fragmentation process that extends from the filament to the fibers and, ultimately, to the smallest-scale condensations.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词MAGNETIC-FIELD ORIENTATION ; MOLECULAR CLOUDS ; SOURCE CATALOG ; DENSE CORES ; 3-MILLIMETER OBSERVATIONS ; INITIAL CONDITIONS ; FORMING FILAMENTS ; PRESTELLAR CORE ; MAIN CLOUD ; FRAGMENTATION
资助项目National Key R&D Program of China[2022YFA1603101]; Yunnan Fundamental Research Project[202301AT070118]; Yunnan Fundamental Research Project[202401AS070121]; NSFC[12033005]; NSFC[JP22H01271]; NSFC[JP23H01221]; CPSF[2022M723278]; JSPS[80NM0018D0004]; Fondecyt Postdoctoral fellowship[3220162]; Fondecyt Postdoctoral fellowship[FB210003]; ALMA[2019.1.00685]; ALMA[2021.1.00095]; ALMA[2023.1.00425]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001376824900001
出版者IOP Publishing Ltd
资助机构National Key R&D Program of China[2022YFA1603101] ; Yunnan Fundamental Research Project[202301AT070118, 202401AS070121] ; NSFC[12033005, JP22H01271, JP23H01221] ; CPSF[2022M723278] ; JSPS[80NM0018D0004] ; Fondecyt Postdoctoral fellowship[3220162, FB210003] ; ALMA[2019.1.00685, 2021.1.00095, 2023.1.00425]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27939]  
专题云南天文台_其他
作者单位1.School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China;
2.University of Science and Technology, Korea (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea;
3.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea;
4.National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan;
5.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Meguro, Tokyo, 152-8551, Japan;
6.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Stree, Urumqi, Xinjiang 830011, People's Republic of China;
7.Departamento de Astronomía, Universidad de Chile, Las Condes, 7591245 Santiago, Chile;
8.Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA;
9.Instituto de Astronomía, Universidad Católica del Norte, Av. Angamos 0610, Antofagasta, Chile;
10.Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People's Republic of China;
推荐引用方式
GB/T 7714		 Yang, Dongting,Liu, Hong-Li,Liu, Tie,et al. The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud[J]. ASTROPHYSICAL JOURNAL,2024,976(2).
APA Yang, Dongting.,Liu, Hong-Li.,Liu, Tie.,Tej, Anandmayee.,Liu, Xunchuan.,...&Xie, Jinjin.(2024).The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud.ASTROPHYSICAL JOURNAL,976(2).
MLA Yang, Dongting,et al."The ALMA-QUARKS Survey: Fibers' Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud".ASTROPHYSICAL JOURNAL 976.2(2024).

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