Correlations of methyl formate (CH3OCHO), dimethyl ether (CH3OCH3), and ketene (H2CCO) in high-mass star-forming regions

doi:10.1093/mnras/stae1934

	Correlations of methyl formate (CH₃OCHO), dimethyl ether (CH₃OCH₃), and ketene (H₂CCO) in high-mass star-forming regions
	Li, Chuanshou 1; Qin, Sheng-Li 1; Liu, Tie 2; Liu, Sheng-Yuan 3; Tang, Mengyao 4; Liu, Hong-Li 1; Chen, Li 1; Li, Xiaohu5 ; Xu, Fengwei 6,7; Zhang, Tianwei 8,9; Liu, Meizhu 1; Shi, Hongqiong 1; Wu, Yuefang 7
	2024-08-21
Source Publication	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN	0035-8711
Volume	533 Issue:2 Pages:1583-1617
Contribution Rank	5
Abstract	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.
Keyword	Astrochemistry ISM: molecules star: formation
DOI	10.1093/mnras/stae1934
Indexed By	SCI
Language	英语
WOS Keyword	COMPLEX ORGANIC-MOLECULES ; ALMA 3-MILLIMETER OBSERVATIONS ; GAS-GRAIN CHEMISTRY ; HOT CORE ; GALACTIC-CENTER ; SPECTRAL SURVEY ; LINE SURVEY ; MILLIMETER ; PHASE ; ATOMS
Funding Project	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 Research Area	Astronomy & Astrophysics
WOS Subject	Astronomy & Astrophysics
WOS ID	WOS:001299560400015
Publisher	OXFORD UNIV PRESS
Funding Organization	ALMA ; National Key RAMP ; D Program of China ; NSFC ; Xinjiang Uygur Autonomous Region of China ; Yunnan provincial Department of Science and Technology
Citation statistics	Cited Times:4[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/6957
Collection	射电天文研究室_天体化学研究团组
Corresponding Author	Li, Chuanshou
Affiliation	1.Yunnan Univ, Sch Phys & Astron, Kunming 650091, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 3.Acad Sinica, Inst Astron & Astrophys, 11F AS NTU Astron Math Bldg,1,Roosevelt Rd,Sect 4, Taipei 10617, Taiwan 4.Chuxiong Normal Univ, Inst Astrophys, Sch Phys & Elect Sci, Chuxiong 675000, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 831399, Peoples R China 6.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 7.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 8.Univ Cologne, Phys Inst 1, Zulpicher Str 77, D-50937 Cologne, Germany 9.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China
Recommended Citation 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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