Evidence of high-mass star formation through multiscale mass accretion in hub-filament-system clouds | |
Liu, Hong-Li17; Tej, Anandmayee18; Liu, Tie19,20; Sanhueza, Patricio21,22; Qin, Sheng-Li17; He JH(何金华)23,24,25; Goldsmith, Paul F.2; Garay, Guido25; Pan, Sirong17; Morii, Kaho3,21 | |
刊名 | Monthly Notices of the Royal Astronomical Society |
2023-07-01 | |
卷号 | 522期号:3页码:3719-3734 |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnras/stad047 |
产权排序 | 第7完成单位 |
文献子类 | Journal article (JA) |
英文摘要 | We present a statistical study of a sample of 17 hub-filament-system (HFS) clouds of high-mass star formation using high-angular resolution (∼1-2 arcsec) ALMA 1.3 and 3 mm continuum data. The sample includes eight infrared (IR)-dark and nine IR-bright types, which correspond to an evolutionary sequence from the IR-dark to IR-bright stage. The central massive clumps and their associated most massive cores are observed to follow a trend of increasing mass (M) and mass surface density (∑) with evolution from the IR-dark to IR-bright stage. In addition, a mass-segregated cluster of young stellar objects (YSOs) are revealed in both IR-dark and IR-bright HFSs with massive YSOs located in the hub and the population of low-mass YSOs distributed over larger areas. Moreover, outflow feedback in all HFSs are found to escape preferentially through the inter-filamentary diffuse cavities, suggesting that outflows would render a limited effect on the disruption of the HFSs and ongoing high-mass star formation therein. From the above observations, we suggest that high-mass star formation in the HFSs can be described by a multiscale mass accretion/transfer scenario, from hub-composing filaments through clumps down to cores, which can naturally lead to a mass-segregated cluster of stars. © 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society. |
学科主题 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
URL标识 | 查看原文 |
资助项目 | N/A |
语种 | 英语 |
出版者 | Oxford University Press |
资助机构 | N/A |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26036] |
专题 | 云南天文台_其他 |
作者单位 | 1.Satyendra Nath Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata, 700 106, India; 2.Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, 91109, United States; 3.Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan; 4.Max Planck Institute for Astronomy, Königstuhl 17, Heidelberg, D-69117, Germany; 5.Departamento de Astronomía, Universidad de Concepción, Av. Esteban Iturra s/n, Distrito Universitario, 160-C, Chile; 6.Max-Planck-Institute for Astronomy, Königstuhl 17, Heidelberg, 69117, Germany; 7.Kavli Institute for Astronomy and Astrophysics, Peking University, 5 Yiheyuan Road, Haidian District, Beijing, 100871, China; 8.Indian Institute of Astrophysics, Koramangala II Block, Bangalore, 560 034, India; 9.Eötvös Loránd University, Department of Astronomy, Pázmány Pétersétány 1/A, Budapest, H-1117, Hungary; 10.Physical Research Laboratory, Navrangpura, Ahmedabad, 380 009, India; |
推荐引用方式 GB/T 7714 | Liu, Hong-Li,Tej, Anandmayee,Liu, Tie,et al. Evidence of high-mass star formation through multiscale mass accretion in hub-filament-system clouds[J]. Monthly Notices of the Royal Astronomical Society,2023,522(3):3719-3734. |
APA | Liu, Hong-Li.,Tej, Anandmayee.,Liu, Tie.,Sanhueza, Patricio.,Qin, Sheng-Li.,...&Luo, Qiu-Yi.(2023).Evidence of high-mass star formation through multiscale mass accretion in hub-filament-system clouds.Monthly Notices of the Royal Astronomical Society,522(3),3719-3734. |
MLA | Liu, Hong-Li,et al."Evidence of high-mass star formation through multiscale mass accretion in hub-filament-system clouds".Monthly Notices of the Royal Astronomical Society 522.3(2023):3719-3734. |
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