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High-mass Outflows Identified from COHRS CO (3-2) Survey
Li, Qiang1,2; Zhou, Jianjun1,3; Esimbek, Jarken1,3; He, Yuxin1,3; Baan, W. A.1,4; Li, Dalei1,3; Wu, Gang1,3; Tang, Xindi1,3,5; Ji, Weiguang1,3; Zhexeray, Dauren6
2018-11-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume867Issue:2Pages:10
Corresponding AuthorLi, Qiang(liqiang@xao.ac.cn)
AbstractAn unbiased search of molecular outflows within the region of the CO High Resolution survey has identified 157 high-mass outflows from a sample of 770 APEX Telescope Large Area Survey of the Galaxy clumps with a detection rate of 20%. The detection rate of outflows increases for clumps with higher M-clump, L-bol, L-bol/M-clump, N-H2, and T-dust compared to the clumps with no outflow. The detection rates of the outflow increase from protostellar (8%) to young stellar object clump (17%) to massive star-forming clump (29%). The detection rate 26% for quiescent clump is preliminary, because the sample of quiescent clumps is small. A statistical relation between the outflow and clump masses for our sample is log(M-out/M-circle dot) = (-1.1 +/- 0.21) + (0.9 +/- 0.07) log(M-clump/M-circle dot). The detection rate of outflows and the outflow mass-loss rate show an increase with increasing M-clump,M- L-bol, N-H2, and T-dust, which indicates that clumps with outflow with higher parameter values are at a more advanced evolutionary stage. The outflow mechanical force increases with increasing bolometric luminosities. No clear evidence has yet been found that highermass outflows have different launching conditions than low-mass outflows.
KeywordISM: jets and outflows ISM: molecules stars: formation stars: massive
DOI10.3847/1538-4357/aae2b8
WOS KeywordBIPOLAR MOLECULAR OUTFLOWS ; STAR-FORMATION REGIONS ; YOUNG STELLAR OBJECTS ; PROTOSTELLAR CANDIDATES ; FORMING REGIONS ; LINE EMISSION ; SAMPLE ; EVOLUTION ; FREQUENCY ; ATLASGAL
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000450221700034
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/20878
Collection中国科学院紫金山天文台
Corresponding AuthorLi, Qiang
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China
4.Netherlands Inst Radio Astron, NL-7991 PD Dwingeloo, Netherlands
5.Max Planck Inst Radioastron, D-53121 Bonn, Germany
6.AL Farabi Kazakh Natl Univ, Dept Solid State Phys & Nonlinear Phys, Fac Phys & Technol, Alma Ata 050040, Kazakhstan
Recommended Citation
GB/T 7714
Li, Qiang,Zhou, Jianjun,Esimbek, Jarken,et al. High-mass Outflows Identified from COHRS CO (3-2) Survey[J]. ASTROPHYSICAL JOURNAL,2018,867(2):10.
APA Li, Qiang.,Zhou, Jianjun.,Esimbek, Jarken.,He, Yuxin.,Baan, W. A..,...&Zhexeray, Dauren.(2018).High-mass Outflows Identified from COHRS CO (3-2) Survey.ASTROPHYSICAL JOURNAL,867(2),10.
MLA Li, Qiang,et al."High-mass Outflows Identified from COHRS CO (3-2) Survey".ASTROPHYSICAL JOURNAL 867.2(2018):10.
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