A High-precision Dynamical Model of Callisto: Incorporating Rotation Effects within Multilayer Internal Structure Models
文献类型：期刊论文
| 作者 | Huang K(黄凯)2,3; Yang YZ(杨永章)2; Chen YH(陈雨豪)2,3; Zhang, Yining3,4; Li YQ(李语强)1,2 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-10-20 |
| 卷号 | 992期号:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/adfe65 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | China is planning to launch the Tianwen-4 mission around the year 2030, with its aim being the exploration of Jupiter and its moon, Callisto. Within the realm of deep space exploration, the accuracy of ephemerides is of great importance. Current ephemerides employ a simplified rotation model for Callisto, which this study addresses by proposing a novel dynamical model. This model enhances the existing orbital dynamics by integrating Callisto's rotational motions influenced by gravitational torques from the Sun, Jupiter, and other Galilean moons within an inertial frame, capturing the intricate coupling between Callisto's orbital and rotational dynamics. The study establishes a full dynamical model by deriving analytical expressions for this coupling and developing an adjustment model for data fitting using precise orbit determination methods. Furthermore, the influence of tidal effects on Callisto's motion is investigated, considering its multilayered internal structure. Results demonstrate that the difference between the newly established full model and the model in current ephemerides is on the order of tens of meters. When calculating the impact of different internal structures of Callisto on its orbit, the influence of three-layered and two-layered structures is on the order of meters, suggesting that the development of a high-precision dynamical model requires additional constraints on the internal structure of Callisto. This research provides a novel alternative for a new generation of precise numerical ephemerides for Callisto. Additionally, these findings provide a testing platform for the data from the Tianwen-4 mission. |
| 学科主题 | 天文学 ; 天体测量学 ; 天体力学 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | GRAVITY-FIELD ; ACCURATE EPHEMERIDES ; GALILEAN SATELLITES ; SUBSURFACE OCEANS ; EUROPA ; JUPITER ; MOONS ; GANYMEDE ; MOTION |
| 资助项目 | National Key Research and Development Program of China (NKPs)[XDA0350300]; Strategic Priority Research Program of the Chinese Academy of Sciences[2021YFA0715101]; National Key Research and Development Program of China[12033009]; National Key Research and Development Program of China[12103087]; National Natural Science Foundation of China[020GJHZ2022034FN]; International Partnership Program of Chinese Academy of Sciences[202201AU070225]; International Partnership Program of Chinese Academy of Sciences[202301AT070328]; International Partnership Program of Chinese Academy of Sciences[202401AT070141]; Yunnan Fundamental Research Projects; Young Talent Project of Yunnan Revitalization Talent Support Program |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001593207900001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key Research and Development Program of China (NKPs)[XDA0350300] ; Strategic Priority Research Program of the Chinese Academy of Sciences[2021YFA0715101] ; National Key Research and Development Program of China[12033009, 12103087] ; National Natural Science Foundation of China[020GJHZ2022034FN] ; International Partnership Program of Chinese Academy of Sciences[202201AU070225, 202301AT070328, 202401AT070141] ; Yunnan Fundamental Research Projects ; Young Talent Project of Yunnan Revitalization Talent Support Program |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28660]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 通讯作者 | Yang YZ(杨永章); Li YQ(李语强) |
| 作者单位 | 1.Key Laboratory of Space Object and Debris Observation, PMO, CAS, Nanjing 210023, People’s Republic of China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China; yang.yongzhang@ynao.ac.cn, lyq@ynao.ac.cn; 3.University of Chinese Academy of Science, Beijing 100049, People’s Republic of China; 4.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China; |
| 推荐引用方式 GB/T 7714 | Huang K,Yang YZ,Chen YH,et al. A High-precision Dynamical Model of Callisto: Incorporating Rotation Effects within Multilayer Internal Structure Models[J]. ASTROPHYSICAL JOURNAL,2025,992(2). |
| APA | 黄凯,杨永章,陈雨豪,Zhang, Yining,&李语强.(2025).A High-precision Dynamical Model of Callisto: Incorporating Rotation Effects within Multilayer Internal Structure Models.ASTROPHYSICAL JOURNAL,992(2). |
| MLA | 黄凯,et al."A High-precision Dynamical Model of Callisto: Incorporating Rotation Effects within Multilayer Internal Structure Models".ASTROPHYSICAL JOURNAL 992.2(2025). |
入库方式： OAI收割
来源：云南天文台
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