High-mass Outflows Identified from COHRS CO (3-2) Survey
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-11-10 |
| 卷号 | 867期号:2页码:10 |
| 关键词 | ISM: jets and outflows ISM: molecules stars: formation stars: massive |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aae2b8 |
| 通讯作者 | Li, Qiang(liqiang@xao.ac.cn) |
| 英文摘要 | An 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. |
| WOS关键词 | BIPOLAR MOLECULAR OUTFLOWS ; STAR-FORMATION REGIONS ; YOUNG STELLAR OBJECTS ; PROTOSTELLAR CANDIDATES ; FORMING REGIONS ; LINE EMISSION ; SAMPLE ; EVOLUTION ; FREQUENCY ; ATLASGAL |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000450221700034 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/20877]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Li, Qiang |
| 作者单位 | 1.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 |
| 推荐引用方式 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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来源：紫金山天文台
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