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Carbon-chain molecule survey toward four low-mass molecular outflow sources

文献类型：期刊论文

作者Zhang, C.1,2; Wu, Y.2,3; Liu, X-C2,3; Tang, Mengyao1; Li, Di4,5; Esimbek, Jarken6,7; Qin, S-L1
刊名ASTRONOMY & ASTROPHYSICS
出版日期2021-04-20
卷号648页码:17
ISSN号0004-6361
关键词ISM: molecules ISM: jets and outflows stars: low-mass stars: protostars
DOI10.1051/0004-6361/202039110
通讯作者Zhang, C.(chaozhangchz@163.com)
英文摘要We performed a carbon-chain molecule (CCM) survey toward four low-mass outflow sources, IRAS 04181+2655 (I04181), HH211, L1524, and L1598, using the 13.7 m telescope at the Purple Mountain Observatory (PMO) and the 65 m Tian Ma Radio telescope at the Shanghai Observatory. We observed the following hydrocarbons (C2H, C4H, c-C3H2), HC2n+1N (n = 1, 2), CnS (n = 2, 3), and SO, HNC, N2H+. Hydrocarbons and HC3N were detected in all the sources, except for L1598, which had a marginal detection of C4H and a non-detection of HC3N (J = 2-1). HC5N and CCCS were only detected in I04181 and L1524, whereas SO was only detected in HH211. L1598 exhibits the lowest detection rate of CCMs and is generally regarded to be lacking in CCMs source. The ratio of N(HC3N/N(N2H+)) increases with evolution in low-mass star-forming cores. I04181 and L1524 are carbon-chain-rich star-forming cores that may possibly be characterized by warm carbon-chain chemistry. In I04181 and L1524, the abundant CCCS can be explained by shocked carbon-chain chemistry. In HH211, the abundant SO suggests that SO is formed by sublimated S+. In this study, we also mapped HNC, C4H, c-C3H2, and HC3N with data from the PMO. We also find that HNC and NH3 are concentrated in L1524S and L1524N, respectively. Furthermore, we discuss the chemical differences between I04181SE and I04181W. The co-evolution between linear hydrocarbon and cyanopolyynes can be seen in I04181SE.
资助项目NSFC[11988101] ; NSFC[12033005] ; NSFC[11433008] ; NSFC[11373009] ; NSFC[11503035] ; NSFC[11573036] ; China Ministry of Science and Technology under State Key Development Program for Basic Research[2012CB821800]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者EDP SCIENCES S A
WOS记录号WOS:000641868100001
资助机构NSFC ; China Ministry of Science and Technology under State Key Development Program for Basic Research
源URL[http://ir.xao.ac.cn/handle/45760611-7/4000]  
专题恒星形成与演化研究团组
通讯作者Zhang, C.
作者单位1.Yunnan Univ, Dept Astron, Key Lab Astroparticle Phys Yunnan Prov, Kunming 650091, Yunnan, Peoples R China
2.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
3.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
4.Natl Astron Observ, CAS Key Lab Fast, CAS, Beijing 100012, Peoples R China
5.Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr NUCAC, ZA-4000 Durban, South Africa
6.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
7.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, C.,Wu, Y.,Liu, X-C,et al. Carbon-chain molecule survey toward four low-mass molecular outflow sources[J]. ASTRONOMY & ASTROPHYSICS,2021,648:17.
APA Zhang, C..,Wu, Y..,Liu, X-C.,Tang, Mengyao.,Li, Di.,...&Qin, S-L.(2021).Carbon-chain molecule survey toward four low-mass molecular outflow sources.ASTRONOMY & ASTROPHYSICS,648,17.
MLA Zhang, C.,et al."Carbon-chain molecule survey toward four low-mass molecular outflow sources".ASTRONOMY & ASTROPHYSICS 648(2021):17.

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