Correlations of methyl formate (CH3OCHO), dimethyl ether (CH3OCH3), and ketene (H2CCO) in high-mass star-forming regions
文献类型：期刊论文
| 作者 | Li, Chuanshou9; Qin, Sheng-Li9; Liu, Tie8; Liu, Sheng-Yuan1; Tang, Mengyao7; Liu, Hong-Li9; Chen, Li9; Li, Xiaohu6 ; Xu, Fengwei4,5; Zhang, Tianwei2,3
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2024-08-21 |
| 卷号 | 533期号:2页码:1583-1617 |
| 关键词 | Astrochemistry ISM: molecules star: formation |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stae1934 |
| 产权排序 | 5 |
| 英文摘要 | We present high-spatial resolution (0.7-1.0 arcsec) submillimeter observations of continuum and molecular lines of CH3OCHO, CH3OCH3, and H2CCO toward 11 high-mass star-forming regions using the Atacama large millimetre/submillimetre array (ALMA). A total of 19 separate cores from nine high-mass star-forming regions are found to be line-rich, including high-, intermediate-, and low-mass line-rich cores. The three molecules are detected in these line-rich cores. We map the emission of CH3OCHO, CH3OCH3, and H2CCO in nine high-mass star-forming regions. The spatial distribution of the three molecules is very similar and concentrated in the areas of intense continuum emission. We also calculate the rotation temperatures, column densities, and abundances of CH3OCHO, CH3OCH3, and H2CCO under the local thermodynamic equilibrium assumption. The abundances relative to H-2 and CH3OH, and line widths of the three molecules are significantly correlated. The abundances relative to H-2, temperatures, and line widths of the three molecules tend to be higher in cores with higher mass and outflows detected. The possible chemical links of the three molecules are discussed. |
| WOS关键词 | COMPLEX ORGANIC-MOLECULES ; ALMA 3-MILLIMETER OBSERVATIONS ; GAS-GRAIN CHEMISTRY ; HOT CORE ; GALACTIC-CENTER ; SPECTRAL SURVEY ; LINE SURVEY ; MILLIMETER ; PHASE ; ATOMS |
| 资助项目 | ALMA[2022YFA1603101] ; National Key RAMP ; D Program of China[12203011] ; NSFC ; Xinjiang Uygur Autonomous Region of China[202101BA070001-261] ; Yunnan provincial Department of Science and Technology |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001299560400015 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | ALMA ; National Key RAMP ; D Program of China ; NSFC ; Xinjiang Uygur Autonomous Region of China ; Yunnan provincial Department of Science and Technology |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6956]  |
| 专题 | 天体化学研究团组 |
| 通讯作者 | Li, Chuanshou |
| 作者单位 | 1.Acad Sinica, Inst Astron & Astrophys, 11F AS NTU Astron Math Bldg,1,Roosevelt Rd,Sect 4, Taipei 10617, Taiwan 2.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China 3.Univ Cologne, Phys Inst 1, Zulpicher Str 77, D-50937 Cologne, Germany 4.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 5.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 6.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 831399, Peoples R China 7.Chuxiong Normal Univ, Inst Astrophys, Sch Phys & Elect Sci, Chuxiong 675000, Peoples R China 8.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 9.Yunnan Univ, Sch Phys & Astron, Kunming 650091, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chuanshou,Qin, Sheng-Li,Liu, Tie,et al. Correlations of methyl formate (CH3OCHO), dimethyl ether (CH3OCH3), and ketene (H2CCO) in high-mass star-forming regions[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,533(2):1583-1617. |
| APA | Li, Chuanshou.,Qin, Sheng-Li.,Liu, Tie.,Liu, Sheng-Yuan.,Tang, Mengyao.,...&Wu, Yuefang.(2024).Correlations of methyl formate (CH3OCHO), dimethyl ether (CH3OCH3), and ketene (H2CCO) in high-mass star-forming regions.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,533(2),1583-1617. |
| MLA | Li, Chuanshou,et al."Correlations of methyl formate (CH3OCHO), dimethyl ether (CH3OCH3), and ketene (H2CCO) in high-mass star-forming regions".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 533.2(2024):1583-1617. |
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来源：新疆天文台
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