Institutional Repository of Optical Astronomy Research Laboratory
| New constraints on Triton's atmosphere from the 6 October 2022 stellar occultation | |
Yuan, Ye1 ; Zhang, Chen1; Li, Fan1; Chen, Jian; Fu, Yanning; Bai, Chunhai; Gao, Xing; Wang, Yong; Zhong, Tuhong; Gao, Yixing; Wang, Liang; Chen, Donghua; Zhan, Yixing; Zhang, Yang; Xie, Wenpeng; Zhang, Shupi; Liu, Ding; Cao, Jun; Yin, Xiangdong; Mo, Xiaojun; Liu, Jing; Han, Xinru; Liu, Tong; Chen, Yuqiang; Gao, Zhendong; Zeng, Xiang; Niu, Guihua; Zheng, Xiansheng; Lin, Yuchen; Ye, Peiyu; Liang, Weitang; Zhu, Chengcheng; Hu, Zhiqiang; He, Jianguo; Zhang, Wei; Chen, Yue; Cheng, Zhuo; Zhang, Yang; Sun, Tianrui; Guo, Chenyang; Lu, Yue24; Lin, Jiajun; Tan, Wei26; Zhou, Jia; Xu, Jun27; He, Jun27; Ye, Jiahui28; Li, Delai28; Zhang, Shuai29; Qu, Qingyue29
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| 2024-04-10 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
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| ISSN | 0004-6361 |
| Volume | 684Pages:L13 |
| Contribution Rank | 3 |
| Abstract | The atmosphere of Triton was probed directly by observing a ground-based stellar occultation on 6 October 2022. This rare event yielded 23 positive light curves collected from 13 separate observation stations contributing to our campaign. The significance of this event lies in its potential to directly validate the modest pressure fluctuation on Triton, a phenomenon not definitively verified by previous observations, including only five stellar occultations, and the Voyager 2 radio occultation in 1989. Using an approach consistent with a comparable study, we precisely determined a surface pressure of 14.07(-0.13)(+0.21) mu bar in 2022. This new pressure rules out any significant monotonic variation in pressure between 2017 and 2022 through direct observations, as it is in alignment with the 2017 value. Additionally, both the pressures in 2017 and 2022 align with the 1989 value. This provides further support for the conclusion drawn from the previous volatile transport model simulation, which is consistent with the observed alignment between the pressures in 1989 and 2017; that is to say, the pressure fluctuation is modest. Moreover, this conclusion suggests the existence of a northern polar cap extended down to at least 45 degrees N-60 degrees N and the presence of nitrogen between 30 degrees S and 0 degrees. |
| Keyword | techniques: photometric occultations planets and satellites: atmospheres planets and satellites: physical evolution planets and satellites: individual: Triton |
| DOI | 10.1051/0004-6361/202348460 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | PLUTOS ATMOSPHERE ; THERMAL STRUCTURE ; PRESSURE ; NEPTUNE ; URANUS ; CO |
| Funding Project | National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809[XDA0350300] ; Strategic Priority Research Program of the Chinese Academy of Sciences[12203105] ; Strategic Priority Research Program of the Chinese Academy of Sciences[12103091] ; Young Scientists Fund of the National Natural Science Foundation of China[62394351] ; Major Program of the National Natural Science Foundation of China[U2031144] ; National Natural Science Foundation of China ; China Manned Space Project ; Purple Mountain Observatory, Chinese Academy of Sciences ; Open Project Program of the CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province[85-cm] ; People's Government of Yunnan Province[80-cm] ; Xinjiang Astronomical Observatory, Chinese Academy of Sciences ; Chinese amateur astronomers from FuJian Astronomical Society ; Dalian Bootes Astronomical Society ; Quzhou Astronomical Association, Hunan Astronomical Association ; Wuyi University |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001199982500002 |
| Publisher | EDP SCIENCES S A |
| Funding Organization | National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809 ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Scientists Fund of the National Natural Science Foundation of China ; Major Program of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Manned Space Project ; Purple Mountain Observatory, Chinese Academy of Sciences ; Open Project Program of the CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; Xinjiang Astronomical Observatory, Chinese Academy of Sciences ; Chinese amateur astronomers from FuJian Astronomical Society ; Dalian Bootes Astronomical Society ; Quzhou Astronomical Association, Hunan Astronomical Association ; Wuyi University |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6758 |
| Collection | 光学天文与技术应用研究室_光学天文技术研究团组 |
| Corresponding Author | Yuan, Ye |
| Affiliation | 1.Chinese Acad Sci, Purple Mt Observ, 10 Yuanhua Rd, Nanjing 210033, Peoples R China 2.Univ Sci & Technol China, Sch Astron & Space Sci, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 4.Xingming Observ, Urumqi 830000, Xinjiang, Peoples R China 5.Beijing Forestry Univ, Sch Landscape Architecture, 35 Qinghua E Rd, Beijing 100083, Peoples R China 6.Chinese Acad Sci, Natl Astron Observ, Nanjing Inst Astron Opt & Technol, 188 Bancang St, Nanjing 210042, Peoples R China 7.Nanjing Inst Astron Opt & Technol, CAS Key Lab Astron Opt & Technol, Nanjing 210042, Peoples R China 8.Univ Chinese Acad Sci, 1 Yanqihu East Rd, Beijing 101408, Peoples R China 9.FuJian Astron Soc, 3a-2303 phase 2,Shimao cuican Tiancheng, Xiamen 361000, Fujian, Peoples R China 10.Xiamen Dolphin Sounthern Astron Technol Co Ltd, Room 511-59,28,Song Yang Yili,Fengxiang St, Xiamen 361000, Peoples R China 11.Beijing Amateur Astronomer Sodal, Beijing 100000, Peoples R China 12.Dongguan Foreign Language Sch, 2 Hengtang Rd, Dongguan 523413, Guangdong, Peoples R China 13.Dongguan Sci Museum, 38 Xinfen Rd, Dongguan 523000, Guangdong, Peoples R China 14.Amateur Astornomrs Assoc Maoming, Room 101-1, Unit 4 Bldg 50, North Renmin Rd, Maoming 525000, Guangdong, Peoples R China 15.JiNan Amateur Astron Assoc, Jinan 250000, Shandong, Peoples R China 16.Qixing Observ, Jinan 250000, Shandong, Peoples R China 17.Sichuan Normal Univ, Coll Phys & Elctron Engn, 1819 Sect 2 Chenglong Ave, Chengdu 610101, Peoples R China 18.Xiamen Minli Primary Sch, Sch Informat, 1 Shengping Rd, Xiamen 361001, Fujian, Peoples R China 19.Duzhou Primary Sch, Shipai Town, Dongguan 523000, Guangdong, Peoples R China 20.Sun Yat Sen Univ, Sch Phys & Astron, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China 21.Foshan Xingkai Technol Co Ltd, Foshan 528200, Peoples R China 22.Dalian Bootes Astron Soc, Dalian 116000, Liaoning, Peoples R China 23.BCTO, 5 Chaogui South Rd, Foshan 528300, Guangdong, Peoples R China 24.Ocean Univ China, XingYuan Coll, 238 Songling Rd, Qingdao 266100, Shandong, Peoples R China 25.Quzhou Astron Assoc, Quzhou 324000, Zhejiang, Peoples R China 26.Hunan Astron Assoc, Changsha 410000, Hunan, Peoples R China 27.Nanjing Amateur Astronomers Assoc, Nanjing 210000, Peoples R China 28.Shenzhen Astron Observ, Tianwen Rd, Shenzhen 518040, Guangdong, Peoples R China 29.Hebei Normal Univ, Dept Space Sci & Astron, 20 Rd East 2nd Ring South, Shijiazhuang 050024, Hebei, Peoples R China |
| Recommended Citation GB/T 7714 | Yuan, Ye,Zhang, Chen,Li, Fan,et al. New constraints on Triton's atmosphere from the 6 October 2022 stellar occultation[J]. ASTRONOMY & ASTROPHYSICS,2024,684:L13. |
| APA | Yuan, Ye.,Zhang, Chen.,Li, Fan.,Chen, Jian.,Fu, Yanning.,...&Qu, Qingyue.(2024).New constraints on Triton's atmosphere from the 6 October 2022 stellar occultation.ASTRONOMY & ASTROPHYSICS,684,L13. |
| MLA | Yuan, Ye,et al."New constraints on Triton's atmosphere from the 6 October 2022 stellar occultation".ASTRONOMY & ASTROPHYSICS 684(2024):L13. |
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| Yuan-2024-New constr（12165KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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