CO observations of massive star forming regions at different evolutionary phases
文献类型：期刊论文
| 作者 | Chen Xi ; Xu Ye; Shen Zhiqiang; Li Jingjing
|
| 刊名 | SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2006-10-01 |
| 卷号 | 49期号:5页码:626-640 |
| 关键词 | star formation cloud core outflow H2O maser |
| 英文摘要 | The (CO)-C-12 (J=1-0), (CO)-C-13 (J=1-0) and (CO)-O-18 (J=1-0) emissions in 9 massive star forming regions, which are believed to be at different stages of massive star formation, were mapped with the 13.7 m millimeter wave telescope at Qinghai Station of Purple Mountain Observatory. Of the observed 9 sources, (CO)-C-13 cores were detected in seven of them, and (CO)-O-18 cores in five of them. And only two sources associated with (CO)-O-18 cores and H2O masers showed the extended structures and strong outflows. This is the first detection of outflow associated with RAS 22566+5828 in the observing field of S152/S153. The physical parameters of cores and outflows for these sources, derived from Local Thermal Equilibrium (LTE) analysis, are presented. These observing results suggest that the (CO)-O-18 cores will only appear when the gas density is high enough and the probability to have an outflow is very high when the clumps show the (CO)-O-18 and H2O maser simultaneously. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 星系和宇宙学研究中心 |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | H-II REGIONS ; MOLECULAR CLOUD CORES ; YOUNG STELLAR OBJECTS ; IRAS 22134+5834 ; OUTFLOWS ; (CO)-C-13 ; MASERS ; EMISSION ; JETS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000241999200011 |
| 公开日期 | 2010-11-08 |
| 源URL | [http://119.78.226.72//handle/331011/12319]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100034, Peoples R China 3.Shanghai Astron Observ, Joint Inst Galaxy & Cosmol, Shanghai 200030, Peoples R China 4.Univ Sci & Technol China, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen Xi,Xu Ye,Shen Zhiqiang,et al. CO observations of massive star forming regions at different evolutionary phases[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2006,49(5):626-640. |
| APA | Chen Xi,Xu Ye,Shen Zhiqiang,&Li Jingjing.(2006).CO observations of massive star forming regions at different evolutionary phases.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,49(5),626-640. |
| MLA | Chen Xi,et al."CO observations of massive star forming regions at different evolutionary phases".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 49.5(2006):626-640. |
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来源：上海天文台
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