Carbon-chain molecules in molecular outflows and Lupus I region - new producing region and new forming mechanism
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 488期号:1页码:495-511 |
| ISSN号 | 0035-8711 |
| 关键词 | stars: formation ISM: abundance ISM: jets and outflows ISM: kinematics and dynamics ISM: molecules |
| DOI | 10.1093/mnras/stz1498 |
| 产权排序 | 18 |
| 英文摘要 | Using 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. |
| WOS关键词 | SPITZER C2D SURVEY ; STARLESS CORE ; DARK CLOUD ; INTERSTELLAR MOLECULE ; DENSE CORES ; CHEMISTRY ; INFALL ; TMC-1 ; PHASE ; L1228 |
| 资助项目 | National Key R&D Program of China[2017YFA0402600] ; NSFC[11433008] ; NSFC[11373009] ; NSFC[11503035] ; NSFC[11573036] ; NSFC[U1631237] ; China Ministry of Science and Technology under State Key Development Program for Basic Research[2012CB821800] ; Top Talents Program of Yunnan Province[2015HA030] ; CONICYT[Basal AFB-170002] ; [CONICYT/PCI/REDI170243] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000482319700040 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3024]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Wu, Yuefang |
| 作者单位 | 1.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 |
| 推荐引用方式 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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