HNCO: a molecule that traces low-velocity shocks
文献类型：期刊论文
| 作者 | Yu, Nai-Ping; Xu, Jing-Long; Wang, Jun-Jie |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 18期号:2页码:18 |
| 关键词 | stars: formation ISM: abundances ISM: clouds ISM: molecules |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/18/2/15 |
| 英文摘要 | Using data from Millimetre Astronomy Legacy Team Survey at 90GHz (MALT90), we present a molecular line study of a sample of APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) clumps. Twelve emission lines have been detected in all. We found that in most sources, emissions of HC3N, (HNC)-C-13, CH3CN, HNCO and SiO show more compact distributions than those of HCO+, HNC, HCN and N2H+. By comparing with other molecular lines, we found that the abundance of HNCO (chi(HNCO)) correlates well with other species such as HC3N, HNC, C2H, (HCO+)-C-13 and N2H+. Previous studies indicate the HNCO abundance could be enhanced by shocks. However, in this study, we find the abundance of HNCO does not correlate well with that of SiO, which is also a good tracer of shocks. We suggest this may be because HNCO and SiO trace different parts of shocks. Our analysis indicates that the velocity of a shock traced by HNCO tends to be lower than that traced by SiO. In the low-velocity shocks traced by HNCO, the HNCO abundance increases faster than that of SiO. While in the relatively high-velocity shocks traced by SiO, the SiO abundance increases faster than that of HNCO. We suggest that in the infrared dark cloud MSXDC G331.71+00.59, high-velocity shocks are destroying the molecule HNCO. |
| WOS关键词 | STAR-FORMING REGIONS ; INFRARED DARK CLOUD ; COLOGNE DATABASE ; ISOCYANIC ACID ; SIO EMISSION ; HOT CORES ; GAS ; CHEMISTRY ; LINE ; SPECTROSCOPY |
| 资助项目 | Commonwealth of Australia ; National Natural Science Foundation of China[11503037] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000428267600003 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 资助机构 | Commonwealth of Australia ; Commonwealth of Australia ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Commonwealth of Australia ; Commonwealth of Australia ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Commonwealth of Australia ; Commonwealth of Australia ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Commonwealth of Australia ; Commonwealth of Australia ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/37184]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Yu, Nai-Ping |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Nai-Ping,Xu, Jing-Long,Wang, Jun-Jie. HNCO: a molecule that traces low-velocity shocks[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(2):18. |
| APA | Yu, Nai-Ping,Xu, Jing-Long,&Wang, Jun-Jie.(2018).HNCO: a molecule that traces low-velocity shocks.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(2),18. |
| MLA | Yu, Nai-Ping,et al."HNCO: a molecule that traces low-velocity shocks".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.2(2018):18. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。