NAOC Open IR
A 4-6 GHz Radio Recombination Line Survey in the Milky Way*
Chen, Hong-Ying1,2,3,4; Chen, Xi1,2,5; Wang, Jun-Zhi1,5; Shen, Zhi-Qiang1; Yang, Kai1,3
2020-05-01
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN0067-0049
Volume248Issue:1Pages:20
AbstractWe performed a radio recombination line (RRL) survey to construct a high-mass star-forming region (HMSFR) sample in the Milky Way based on the all-sky Wide-Field Infrared Survey Explorer point-source catalog. The survey was observed with the Shanghai 65 m Tianma radio telescope covering 10 hydrogen RRL transitions ranging from H98 alpha to H113 alpha (corresponding to the rest frequencies of 4.5-6.9 GHz) simultaneously. Out of 3348 selected targets, we identified an HMSFR sample consisting of 517 sources traced by RRLs; a large fraction of this sample (486) is located near the Galactic Plane ( divide b divide < 2 degrees). In addition to the hydrogen RRLs, we also detected helium and carbon RRLs toward 49 and 23 sources, respectively. We crossmatch the RRL detections with the 6.7 methanol maser sources built up in previous works for the same target sample. As a result, 103 HMSFR sources were found to harbor both emissions. In this paper, we present the HMSFR catalog accompanied by the measured RRL line properties and a correlation with our methanol maser sample, which is believed to trace massive stars at earlier stages. The construction of an HMSFR sample consisting of sources in various evolutionary stages indicated by different tracers is fundamental for future studies of high-mass star formation in such regions.
KeywordStar formation Star-forming regions Interstellar line emission Interstellar abundances Interstellar atomic gas Dense interstellar clouds Interstellar line absorption H II regions Compact H II region
Funding OrganizationChina Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; University of Manchester ; University of Manchester ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; University of Manchester ; University of Manchester ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; University of Manchester ; University of Manchester ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; University of Manchester ; University of Manchester ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019)
DOI10.3847/1538-4365/ab818e
WOS KeywordH-II REGIONS ; MULTIBEAM MASER CATALOG ; COMPACT HII-REGIONS ; METHANOL MASERS ; ELECTRON-TEMPERATURE ; STAR-FORMATION ; SPIRAL ARMS ; 327 MHZ ; RESOLUTION ; ABUNDANCE
Language英语
Funding ProjectChina Scholarship Council (CSC)[201704910999] ; Science and Technology Facilities Council (STFC) ; University of Manchester ; National Natural Science Foundation of China[11590781] ; National Natural Science Foundation of China[11590783] ; National Natural Science Foundation of China[11590784] ; National Natural Science Foundation of China[11873002] ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019)
Funding OrganizationChina Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; University of Manchester ; University of Manchester ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; University of Manchester ; University of Manchester ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; University of Manchester ; University of Manchester ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; University of Manchester ; University of Manchester ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019) ; Guangdong Province Universities, and Colleges Pearl River Scholar Funded Scheme (2019)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000529873000001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/55142
Collection中国科学院国家天文台
Corresponding AuthorChen, Xi
Affiliation1.Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
2.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China
4.Univ Manchester, Dept Phys & Astron, Jodrell Bank Ctr Astrophys, Alan Turing Bldg, Manchester M13 9PL, Lancs, England
5.Chinese Acad Sci, Key Lab Radio Astron, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Chen, Hong-Ying,Chen, Xi,Wang, Jun-Zhi,et al. A 4-6 GHz Radio Recombination Line Survey in the Milky Way*[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2020,248(1):20.
APA Chen, Hong-Ying,Chen, Xi,Wang, Jun-Zhi,Shen, Zhi-Qiang,&Yang, Kai.(2020).A 4-6 GHz Radio Recombination Line Survey in the Milky Way*.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,248(1),20.
MLA Chen, Hong-Ying,et al."A 4-6 GHz Radio Recombination Line Survey in the Milky Way*".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 248.1(2020):20.
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