Institutional Repository of Radio Astronomy Research Laboratory
| Searching for further evidence for cloud-cloud collisions in L1188 | |
Gong, Y.1,2,3; Tang, X. D.1,4 ; Henkel, C.1,4,5; Menten, K. M.1; Mao, R. Q.2,3; Wang, Y.6; Lee, M-Y7; Zhu, W. S.8; Lin, Y.1; Zhang, S. B.2,3; Chen, X. P.2,3; Yang, W. J.2,3
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| 2019-12-12 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
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| ISSN | 0004-6361 |
| Volume | 632Pages:A115 |
| Contribution Rank | 3 |
| Abstract | In order to search for further observational evidence of cloud-cloud collisions in one of the promising candidates, L1188, we carried out observations of multiple molecular lines toward the intersection region of the two nearly orthogonal filamentary molecular clouds in L1188. Based on these observations, we find two parallel filamentary structures, both of which have at least two velocity components being connected with broad bridging features. We also found a spatially complementary distribution between the two molecular clouds, as well as enhanced (CO)-C-13 emission and (CO)-C-12 self-absorption toward their abutting regions. At the most blueshifted velocities, we unveil a 1 pc-long arc ubiquitously showing (CO)-C-12 line wings. We discover two 22 GHz water masers, which are the first maser detections in L1188. An analysis of line ratios at a linear resolution of 0.2 pc suggests that L1188 is characterised by kinetic temperatures of 13-23 K and H-2 number densities of 10(3)-10(3.6) cm(-3). On the basis of previous theoretical predictions and simulations, we suggest that these observational features can be naturally explained by the scenario of a cloud-cloud collision in L1188, although an additional contribution of stellar feedback from low-mass young stellar objects cannot be ruled out. |
| Keyword | ISM clouds ISM kinematics and dynamics radio lines ISM ISM molecules ISM individual objects L1188 |
| DOI | 10.1051/0004-6361/201936824 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | YOUNG STELLAR OBJECTS ; SPECTRAL ENERGY-DISTRIBUTIONS ; PERSISTENT COSMIC WEB ; WATER MASER SURVEY ; FILAMENTARY STRUCTURE ; ISOLATING SIGNATURES ; KELVIN-HELMHOLTZ ; SIO EMISSION ; NORTHERN SKY ; DENSE CORES |
| Funding Project | National Key R&D Program of China[2017YFA0402700] ; National Key R&D Program of China[2017YFA0402702] ; National Natural Science Foundation of China (NSFC)[11127 903] ; NSFC[11673077] ; NSFC[11903070] ; NSFC[11433008] ; NSFC[11803091] ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of PR China ; Chinese Academy of Sciences President's International Fellowship Initiative[2019VMA0039] ; European Research Council[CSF-648505] ; European Union[730562] ; National Aeronautics and Space Administration ; Science and Technology Facilities Council of the United Kingdom |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000502386900003 |
| Publisher | EDP SCIENCES S A |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; NSFC ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of PR China ; Chinese Academy of Sciences President's International Fellowship Initiative ; European Research Council ; European Union ; National Aeronautics and Space Administration ; Science and Technology Facilities Council of the United Kingdom |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3300 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 |
| Corresponding Author | Gong, Y. |
| Affiliation | 1.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany 2.Chinese Acad Sci, Purple Mt Observ, 10 Yuanhua Rd, Nanjing 210033, Jiangsu, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, 10 Yuanhua Rd, Nanjing 210033, Jiangsu, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 5.King Abdulaziz Univ, Fac Sci, Astron Dept, POB 80203, Jeddah 21589, Saudi Arabia 6.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany 7.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea 8.Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China |
| Recommended Citation GB/T 7714 | Gong, Y.,Tang, X. D.,Henkel, C.,et al. Searching for further evidence for cloud-cloud collisions in L1188[J]. ASTRONOMY & ASTROPHYSICS,2019,632:A115. |
| APA | Gong, Y..,Tang, X. D..,Henkel, C..,Menten, K. M..,Mao, R. Q..,...&Yang, W. J..(2019).Searching for further evidence for cloud-cloud collisions in L1188.ASTRONOMY & ASTROPHYSICS,632,A115. |
| MLA | Gong, Y.,et al."Searching for further evidence for cloud-cloud collisions in L1188".ASTRONOMY & ASTROPHYSICS 632(2019):A115. |
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| Gong-2019-Searching （2387KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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