NAOC Open IR
Infall in massive clumps harboring bright infrared sources
Yue, Ying-Hua1,2; Qin, Sheng-Li1,2; Liu, Tie3; Tang, Meng-Yao1,2; Wu, Yuefang4; Wang, Ke5; Zhang, Chao1,2
2021
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume21Issue:1Pages:7
AbstractThirty massive clumps associated with bright infrared sources were observed to detect the infall signatures and characterize infall properties in the envelope of the massive clumps by APEX telescope in CO(4-3) and (CO)-O-17(3-2) lines. Eighteen objects exhibit a "blue profile" in the CO(4-3) line with virial parameters less than 2, suggesting that global collapse is taking place in these massive clumps. The CO(4-3) lines were fitted via the two-layer model in order to obtain infall velocities and mass infall rates. Derived mass infall rates range from 10(-3) to 10(-1) M-circle dot yr(-1). A positive relationship between clump mass and infall rate appears to indicate that gravity plays a dominant role in the collapsing process. Higher luminosity clumps have a larger mass infall rate, implying that those clumps with higher mass infall rates possess a higher star formation rate.
Keywordstars: formation ISM: clouds ISM: molecules
Funding OrganizationNational Key Reasearch and Development Program of China ; National Key Reasearch and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; National Key Reasearch and Development Program of China ; National Key Reasearch and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; National Key Reasearch and Development Program of China ; National Key Reasearch and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; National Key Reasearch and Development Program of China ; National Key Reasearch and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University
DOI10.1088/1674-4527/21/1/14
Language英语
Funding ProjectNational Key Reasearch and Development Program of China[2017YFA0402701] ; National Key Reasearch and Development Program of China[2019YFA0405100] ; National Natural Science Foundation of China[U1631237] ; National Natural Science Foundation of China[11973013] ; National Natural Science Foundation of China[11721303] ; National Natural Science Foundation of China[11373026] ; National Natural Science Foundation of China[11433004] ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University[7101502016]
Funding OrganizationNational Key Reasearch and Development Program of China ; National Key Reasearch and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; National Key Reasearch and Development Program of China ; National Key Reasearch and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; National Key Reasearch and Development Program of China ; National Key Reasearch and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; National Key Reasearch and Development Program of China ; National Key Reasearch and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University ; starting grant at the Kavli Institute for Astronomy and Astrophysics, Peking University
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000616090700001
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/79539
Collection中国科学院国家天文台
Corresponding AuthorYue, Ying-Hua
Affiliation1.Yunnan Univ, Dept Astron, Kunming 650091, Yunnan, Peoples R China
2.Key Lab Astroparticle Phys Yunnan Prov, Kunming 650091, Yunnan, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 20030, Peoples R China
4.Peking Univ, Dept Astron, Beijing 100871, Peoples R China
5.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Yue, Ying-Hua,Qin, Sheng-Li,Liu, Tie,et al. Infall in massive clumps harboring bright infrared sources[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(1):7.
APA Yue, Ying-Hua.,Qin, Sheng-Li.,Liu, Tie.,Tang, Meng-Yao.,Wu, Yuefang.,...&Zhang, Chao.(2021).Infall in massive clumps harboring bright infrared sources.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(1),7.
MLA Yue, Ying-Hua,et al."Infall in massive clumps harboring bright infrared sources".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.1(2021):7.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yue, Ying-Hua]'s Articles
[Qin, Sheng-Li]'s Articles
[Liu, Tie]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yue, Ying-Hua]'s Articles
[Qin, Sheng-Li]'s Articles
[Liu, Tie]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yue, Ying-Hua]'s Articles
[Qin, Sheng-Li]'s Articles
[Liu, Tie]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.