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Carbon-chain molecules in molecular outflows and Lupus I region - new producing region and new forming mechanism
Wu, Yuefang1,2; Liu, Xunchuan1,2; Chen, Xi3,4; Lin, Lianghao1,5,6,7; Yuan, Jinghua8; Zhang, Chao1,2,9; Liu, Tie10,11; Shen, Zhiqiang3; Li, Juan3; Wang, Junzhi3; Qin, Sheng-Li9; Kim, Kee-Tae10; Liu, Hongli12,13; Zhu, Lei8; Madones, Diego14,15; Inostroza, Natalia16; Henkel, Christian17,18,19; Zhang, Tianwei2; Li, Di8,20,21; Esimbek, Jarken19,22; Liu, Qinghui3
2019-09-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume488Issue:1Pages:495-511
Corresponding AuthorWu, Yuefang(ywu@pku.edu.cn)
AbstractUsing the new equipment of the Shanghai Tian Ma Radio Telescope, we have searched for carbon-chain molecules (CCMs) towards five outflow sources and six Lupus I starless dust cores, including one region known to be characterized by warm carbon-chain chemistry (WCCC), Lupus I-1 (IRAS 15398-3359), and one TMC-1 like cloud, Lupus I-6 (Lupus-1A). Lines of HC3N J= 2-1, HC5N J= 6-5, HC7N J= 14-13, 15-14, 16-15, and C3S J= 3-2 were detected in all the targets except in the outflow source L1660 and the starless dust core Lupus I-3/4. The column densities of nitrogen-bearing species range from 10(12) to 10(14) cm(-2) and those of C3S are about 10(12) cm(-2). Two outflow sources, I20582+7724 and L1221, could be identified as new carbon-chain-producing regions. Four of the Lupus I dust cores are newly identified as early quiescent and dark carbon-chain-producing regions similar to Lup I-6, which together with the WCCC source, Lup I-1, indicate that carbon-chain-producing regions are popular in Lupus I which can be regard as a Taurus-like molecular cloud complex in our Galaxy. The column densities of C3S are larger than those of HC7N in the three outflow sources I20582, L1221, and L1251A. Shocked carbon-chain chemistry is proposed to explain the abnormal high abundances of C3S compared with those of nitrogen-bearing CCMs. Gas-grain chemical models support the idea that shocks can fuel the environment of those sources with enough S+ thus driving the generation of S-bearing CCMs.
Keywordstars: formation ISM: abundance ISM: jets and outflows ISM: kinematics and dynamics ISM: molecules
DOI10.1093/mnras/stz1498
WOS KeywordSPITZER C2D SURVEY ; STARLESS CORE ; DARK CLOUD ; INTERSTELLAR MOLECULE ; DENSE CORES ; CHEMISTRY ; INFALL ; TMC-1 ; PHASE ; L1228
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000482319700040
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27887
Collection中国科学院紫金山天文台
Corresponding AuthorWu, Yuefang
Affiliation1.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
2.Peking Univ, Kavili Inst Astron & Astrophys, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
4.GuangZhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China
5.Univ Sci & Technol China, Sch Astron & Space Sci, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China
6.Chinese Acad Sci, Purple Mt Observ, 8 Yuanhua Rd, Nanjing 210034, Jiangsu, Peoples R China
7.Chinese Acad Sci, Key Lab Radio Astron, 8 Yuanhua Rd, Nanjing 210034, Jiangsu, Peoples R China
8.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
9.Yunnan Univ, Dept Astron, Kunming 650091, Yunnan, Peoples R China
10.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea
11.East Asian Observ, 660 North Aohoku Pl, Hilo, HI 96720 USA
12.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong 999077, Peoples R China
13.Univ Concepcion, Dept Astron, Av Esteban Iturra S-N,Dist Univ 2120000,160-C, Concepcion, Chile
14.Univ Chile, Dept Astron, Casilla 36-D, Santiago 8320000, Chile
15.Max Planck Inst Extraterr Phys, Ctr Astrochem Studies, Giessenbachstr 1, D-85748 Garching, Germany
16.Univ Autonoma Chile, Fac Ingn, Inst Ciencias Quim Aplicadas, Nucleo Astroquim Astrofis, Av Pedro de Valdivia 425, Providencia, Santiago De Chi, Chile
17.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
18.King Abdulaziz Univ, Fac Sci, Astron Dept, POB 80203, Jeddah 21589, Saudi Arabia
19.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
20.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210034, Jiangsu, Peoples R China
21.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
22.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China
Recommended Citation
GB/T 7714
Wu, Yuefang,Liu, Xunchuan,Chen, Xi,et al. Carbon-chain molecules in molecular outflows and Lupus I region - new producing region and new forming mechanism[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,488(1):495-511.
APA Wu, Yuefang.,Liu, Xunchuan.,Chen, Xi.,Lin, Lianghao.,Yuan, Jinghua.,...&Liu, Qinghui.(2019).Carbon-chain molecules in molecular outflows and Lupus I region - new producing region and new forming mechanism.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,488(1),495-511.
MLA Wu, Yuefang,et al."Carbon-chain molecules in molecular outflows and Lupus I region - new producing region and new forming mechanism".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 488.1(2019):495-511.
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