ALMA High-resolution Spectral Survey of Thioformaldehyde (H<sub>2</sub>CS) toward Massive Protoclusters

doi:10.3847/1538-4357/ad110f

	ALMA High-resolution Spectral Survey of Thioformaldehyde (H₂CS) toward Massive Protoclusters
	Chen, Li 1; Qin, Sheng-Li 1; Liu, Tie 2; Liu, Hong-Li 1; Liu, Sheng-Yuan 3; Liu, Meizhu 1; Shi, Hongqiong 1; Li, Chuanshou 1; Tang, Mengyao 4; Zhang, Tianwei 5,6; Tatematsu, Ken'ichi 7; Li, Xiaohu8 ; Xu, Fengwei 9,10; Wu, Yuefang 10; Yang, Dongting 1
	2024-02-01
Source Publication	ASTROPHYSICAL JOURNAL
ISSN	0004-637X
Volume	962 Issue:1 Pages:13
Contribution Rank	8
Abstract	Investigating the temperature and density structures of gas in massive protoclusters is crucial for understanding the chemical properties therein. In this study, we present observations of the continuum and thioformaldehyde (H2CS) lines at 345 GHz of 11 massive protoclusters using the Atacama Large Millimeter/submillimeter Array telescope. High spatial resolution and sensitivity observations have detected 145 continuum cores from the 11 sources. H2CS line transitions are observed in 72 out of 145 cores, including line-rich cores, warm cores, and cold cores. The H-2 column densities of the 72 cores are estimated from the continuum emission, which are larger than the density threshold value for star formation, suggesting that H2CS can be widely distributed in star-forming cores with different physical environments. The rotation temperature and column density of H2CS are derived using the XCLASS software. The results show that the H2CS abundances increase as temperature rises and higher gas temperatures are usually associated with higher H2CS column densities. The abundances of H2CS are positively correlated with its column density, suggesting that the H2CS abundances are enhanced from cold cores, warm cores, and line-rich cores in star-forming regions.
DOI	10.3847/1538-4357/ad110f
Indexed By	SCI
Language	英语
WOS Keyword	LARGE-MAGELLANIC-CLOUD ; MOLECULAR LINE SURVEY ; STAR-FORMING REGIONS ; HERSCHEL OBSERVATIONS ; COLOGNE DATABASE ; SULFUR CHEMISTRY ; SGR B2(N) ; HOT CORES ; MILLIMETER ; ASTROPY
Funding Project	National Key R&D Program of China[12203011] ; NSFC[12122307] ; NSFC[12103045] ; NSFC[202101BA070001] ; NSFC[12033005] ; Xinjiang Uygur Autonomous Region of China ; Yunnan Provincial Department of Science and Technology ; Deutsche Forschungsgemeinschaft (DFG) ; [2022YFA1603101] ; [12073061]
WOS Research Area	Astronomy & Astrophysics
WOS Subject	Astronomy & Astrophysics
WOS ID	WOS:001155743000001
Publisher	IOP Publishing Ltd
Funding Organization	National Key R&D Program of China ; NSFC ; Xinjiang Uygur Autonomous Region of China ; Yunnan Provincial Department of Science and Technology ; Deutsche Forschungsgemeinschaft (DFG)
Citation statistics	Cited Times:5[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/5798
Collection	射电天文研究室_天体化学研究团组
Corresponding Author	Chen, Li
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,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan 4.Chuxiong Normal Univ, Inst Astrophys, Sch Phys & Elect Sci, Chuxiong 675000, Peoples R China 5.Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China 6.Univ Cologne, I Phys Inst, Zulpicher Str 77, D-50937 Cologne, Germany 7.Natl Inst Nat Sci, Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan 8.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi, Peoples R China 9.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 10.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
Recommended Citation GB/T 7714	Chen, Li,Qin, Sheng-Li,Liu, Tie,et al. ALMA High-resolution Spectral Survey of Thioformaldehyde (H₂CS) toward Massive Protoclusters[J]. ASTROPHYSICAL JOURNAL,2024,962(1):13.
APA	Chen, Li.,Qin, Sheng-Li.,Liu, Tie.,Liu, Hong-Li.,Liu, Sheng-Yuan.,...&Yang, Dongting.(2024).ALMA High-resolution Spectral Survey of Thioformaldehyde (H₂CS) toward Massive Protoclusters.ASTROPHYSICAL JOURNAL,962(1),13.
MLA	Chen, Li,et al."ALMA High-resolution Spectral Survey of Thioformaldehyde (H₂CS) toward Massive Protoclusters".ASTROPHYSICAL JOURNAL 962.1(2024):13.

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