ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions - VIII. A search for hot cores by using C2H5CN, CH3OCHO, and CH3OH lines | |
Qin, Sheng-Li8; Liu, Tie9; Liu, Xunchuan9; Goldsmith, Paul F10; Li, Di11,12,13; Zhang, Qizhou14; Liu, Hong-Li8; Wu, Yuefang15; Bronfman, Leonardo16; Juvela, Mika17 | |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2022-02-21 | |
卷号 | 511期号:3页码:3463-3476 |
关键词 | astrochemistry stars: formation ISM: molecules |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnras/stac219 |
产权排序 | 第14完成单位 |
文献子类 | Article |
英文摘要 | Hot cores characterized by rich lines of complex organic molecules are considered as ideal sites for investigating the physical and chemical environments of massive star formation. We present a search for hot cores by using typical nitrogen- and oxygen-bearing complex organic molecules (C2H5CN, CH3OCHO, and CH3OH), based on ALMA Three-millimeter Observations of Massive Star-forming regions (ATOMS). The angular resolutions and line sensitivities of the ALMA observations are better than 2 arcsec and 10 mJy beam(-1), respectively. A total of 60 hot cores are identified with 45 being newly detected, in which the complex organic molecules have high gas temperatures (> 100 K) and hot cores have small source sizes (< 0.1 pc). So far, this is the largest sample of hot cores observed with similar angular resolution and spectral coverage. The observations have also shown nitrogen and oxygen differentiation in both line emission and gas distribution in 29 hot cores. Column densities of CH3OH and CH3OCHO increase as rotation temperatures rise. The column density of CH3OCHO correlates tightly with that of CH3OH. The pathways for production of different species are discussed. Based on the spatial position difference between hot cores and ultracompact H ii (UC H ii) regions, we conclude that 24 hot cores are externally heated, while the other hot cores are internally heated. The observations presented here will potentially help establish a hot core template for studying massive star formation and astrochemistry. |
学科主题 | 天文学 ; 恒星与银河系 |
URL标识 | 查看原文 |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
资助项目 | National Key R&D Program of China[2017YFA0402701] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12033005] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12073061] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12122307] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12103045] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11973013] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11973099] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11873086] ; Chinese Academy of SciencesChinese Academy of Sciences[114231KYSB20200009] ; Shanghai Pujiang ProgramShanghai Pujiang Program[20PJ1415500] ; China Manned Space[CMS-CSST-2021-B06] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)National Research Foundation of Korea[2021R1A2C1011718] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and TechnologyNational Research Foundation of Korea[NRF-2019R1A2C1010851] ; Chinese Academy of Sciences (CAS)Chinese Academy of Sciences ; ANID BASAL project[FB210003] ; Ministry of Science and Technology (MoST)Ministry of Science and Technology, China[110-2112-M-001-056-] |
WOS关键词 | COMPLEX ORGANIC-MOLECULES ; EXTRAORDINARY SOURCES ANALYSIS ; HERSCHEL OBSERVATIONS ; HIGH-RESOLUTION ; ORION-KL ; CHEMICAL DIFFERENTIATION ; MILLIMETER OBSERVATIONS ; MULTILINE OBSERVATIONS ; COLOGNE DATABASE ; SPECTRAL SURVEY |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | OXFORD UNIV PRESS |
WOS记录号 | WOS:000759087700004 |
资助机构 | National Key R&D Program of China[2017YFA0402701] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[12033005, 12073061, 12122307, 12103045, 11973013, 11973099, 11873086] ; Chinese Academy of SciencesChinese Academy of Sciences[114231KYSB20200009] ; Shanghai Pujiang ProgramShanghai Pujiang Program[20PJ1415500] ; China Manned Space[CMS-CSST-2021-B06] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)National Research Foundation of Korea[2021R1A2C1011718] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and TechnologyNational Research Foundation of Korea[NRF-2019R1A2C1010851] ; Chinese Academy of Sciences (CAS)Chinese Academy of Sciences ; ANID BASAL project[FB210003] ; Ministry of Science and Technology (MoST)Ministry of Science and Technology, China[110-2112-M-001-056-] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/24955] |
专题 | 云南天文台_其他 |
通讯作者 | Qin, Sheng-Li; Liu, Tie |
作者单位 | 1.Institute of Astronomy and Astrophysics, Anqing Normal University, Anqing 246133, People’s Republic of China; 2.Department of Physics, Anhui Normal University, Wuhu, Anhui 241002, People’s Republic of China; 3.Institute of Astrophysics, School of Physics and Electronical Science, Chuxiong Normal University, Chuxiong 675000, People’s Republic of China; 4.Indian Institute of Space Science and Technology, Thiruvananthapuram 695 547, India 5.Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, India; 6.S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake City, Kolkata 700106, India; 7.College of Science, Yunnan Agricultural University, Kunming 650201, People’s Republic of China; 8.Department of Astronomy, Yunnan University, Kunming 650091, People’s Republic of China; 9.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People’s Republic of China; 10.Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA; |
推荐引用方式 GB/T 7714 | Qin, Sheng-Li,Liu, Tie,Liu, Xunchuan,et al. ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions - VIII. A search for hot cores by using C2H5CN, CH3OCHO, and CH3OH lines[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2022,511(3):3463-3476. |
APA | Qin, Sheng-Li.,Liu, Tie.,Liu, Xunchuan.,Goldsmith, Paul F.,Li, Di.,...&Tej, Anandmayee.(2022).ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions - VIII. A search for hot cores by using C2H5CN, CH3OCHO, and CH3OH lines.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,511(3),3463-3476. |
MLA | Qin, Sheng-Li,et al."ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions - VIII. A search for hot cores by using C2H5CN, CH3OCHO, and CH3OH lines".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 511.3(2022):3463-3476. |
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