Institutional Repository of Radio Astronomy Research Laboratory
| Observations of the Hydrogen Cyanide in Comet 46P/Wirtanen at a 3.4 mm Wavelength | |
Wang Zhen1 ; Zhang Shao-Bo2,3; Tseng Wei-Ling4; Sun Ji-Xian2,3; Liao Ying5; Ip Wing-Huen5,6; Zheng Xing-Wu7; Wang Na1; Lu Deng-Rong2,3; Chen Lue1; Shan Hao1; Yuan Ye1; Yan Jian-Guo8; Ping Jin-Song9
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| 2020-05-01 | |
| Source Publication | ASTRONOMICAL JOURNAL
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| ISSN | 0004-6256 |
| Volume | 159Issue:5Pages:5 |
| Abstract | We searched for rotational lines of (HCN)-C-12-N-14 in comet 46P/Wirtanen, using the Purple Mountain Observatory 13.7 m radio telescope. The J = 1-0 lines of HCN (3.4 mm wavelength) were unambiguously detected in 46P during the 2018 December 14-15 period, with a beam resolution of 622 and a velocity resolution of similar to 0.21 km s(-1) per channel. The molecular production rates were computed. The mean HCN(1-0) production rate of 46P was (6.45 +/- 1.31) x 10(24) molec s(-1) in the above two days. We found possible indications of time variation in the outgassing activity. The average HCN abundance relative to water Q([HCN])/Q([H2O]) of 46P was (0.09 +/- 0.01)%. The HCN line shapes gave primary information on the kinematics of the cometary atmosphere. The HCN linewidths provided a direct determination of the coma expansion velocity, which was about 0.5 +/- 0.05 km s(-1) at post-perihelion (1.056 au). |
| Corresponding Author | Wang Zhen(wangzh@xao.ac.cn) |
| Keyword | Comets Comae Small solar system bodies Short period comets |
| DOI | 10.3847/1538-3881/ab8734 |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| WOS Keyword | MOLECULAR OBSERVATIONS ; EXPANSION VELOCITY ; PARENT MOLECULES ; HALE-BOPP ; HCN ; MILLIMETER ; EMISSION ; NUCLEUS ; IRAM ; JCMT |
| Funding Project | foresight project funding of center for Astronomical Mega-Science, Chinese Academy of Sciences[2019000009] ; Chinese Academy of Sciences Taiwan Young Talent Programme[2018TW2JA0006] ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of China ; National Nature Science Foundation of China[11503073] ; Chinese Academy of Sciences Foundation of the young scholars of western[2015XBQN-B-02] ; Surface Projects of NSFC[11673056] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000531274500001 |
| Publisher | IOP PUBLISHING LTD |
| Funding Organization | foresight project funding of center for Astronomical Mega-Science, Chinese Academy of Sciences ; Chinese Academy of Sciences Taiwan Young Talent Programme ; Heaven Lake Hundred-Talent Program of Xinjiang Uygur Autonomous Region of China ; National Nature Science Foundation of China ; Chinese Academy of Sciences Foundation of the young scholars of western ; Surface Projects of NSFC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/3485 |
| Collection | 射电天文研究室_行星科学研究组 |
| Corresponding Author | Wang Zhen |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Key Lab Radio Astron, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 4.Natl Taiwan Normal Univ, Taipei, Taiwan 5.Macau Univ Sci & Technol, Space Sci Inst, Macau, Peoples R China 6.Natl Cent Univ, Inst Astron, Chungli 32054, Taiwan 7.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 8.Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430079, Peoples R China 9.Chinese Acad Sci, Lunar & Deep Space Explorat, Natl Astron Observ, Beijing 100012, Peoples R China |
| Recommended Citation GB/T 7714 | Wang Zhen,Zhang Shao-Bo,Tseng Wei-Ling,et al. Observations of the Hydrogen Cyanide in Comet 46P/Wirtanen at a 3.4 mm Wavelength[J]. ASTRONOMICAL JOURNAL,2020,159(5):5. |
| APA | Wang Zhen.,Zhang Shao-Bo.,Tseng Wei-Ling.,Sun Ji-Xian.,Liao Ying.,...&Ping Jin-Song.(2020).Observations of the Hydrogen Cyanide in Comet 46P/Wirtanen at a 3.4 mm Wavelength.ASTRONOMICAL JOURNAL,159(5),5. |
| MLA | Wang Zhen,et al."Observations of the Hydrogen Cyanide in Comet 46P/Wirtanen at a 3.4 mm Wavelength".ASTRONOMICAL JOURNAL 159.5(2020):5. |
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