Dense molecular gas tracers in high mass star formation regions
文献类型：期刊论文
| 作者 | Ma, Hong-Jun1; Gao, Yu1 ; Wu, Jing-Wen2,3
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2016-02-01 |
| 卷号 | 16期号:2 |
| 关键词 | ISM: clouds ISM: molecules stars: formation |
| 英文摘要 | We report the FCRAO observations that mapped HCN (1-0), CS (2-1), HNC (1-0) and HCO+ (1-0) in ten high-mass star forming cores associated with water masers. We present velocity integrated intensity maps of the four lines for these dense cores, compare their line profiles, and derive physical properties of these cores. We find that these four tracers identify areas with similar properties in these massive dense cores, and in most cases, the emissions of HCN and HCO+ are stronger than those of HNC and CS. We also use the line ratios of HCO+/HCN, HNC/HCN and HNC/HCO+ as the diagnostics to explore the environment of these high-mass star forming regions, and find that most of the cores agree with the model that photodominated regions dominate the radiation field, except for W44, for which the radiation field is similar to an X-ray dominated region. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369252500005 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5453]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Radio Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Hong-Jun,Gao, Yu,Wu, Jing-Wen. Dense molecular gas tracers in high mass star formation regions[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(2). |
| APA | Ma, Hong-Jun,Gao, Yu,&Wu, Jing-Wen.(2016).Dense molecular gas tracers in high mass star formation regions.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(2). |
| MLA | Ma, Hong-Jun,et al."Dense molecular gas tracers in high mass star formation regions".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.2(2016). |
入库方式： OAI收割
来源：国家天文台
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