| The Figure and Dynamical Parameters of Io Inferred from Internal Structure Models |
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| 作者姓名： | HongZhang Cheng－ZhiZhang |
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| 作者单位： | Department of Astronomy，Nanjing University，Nanjing 210093 |
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| 摘 要： | The recent Galileo spacecraft explored Jupiter and its satellite system and provided us with new geodetic data. In order to discuss the dynamical parameters and secular tidal effect of Io, the theory of synchronous satellite is described in detail. Using the new geodetic data of Io, two sets of Io‘s internal structure models are constructed based on the asthenosphere assumption. The liberation parameters α，β，γ and dynamical flattening H are calculated for the models of Io. A comparison of Io with the Moon indicates the they are quite different in many characteristics in spite of the fact that they are approximately equal in mass and size and that they both orbit synchronously.
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| 关 键 词： | 内部结构模型 同步运行轨道 动态参数 卫星 伽利略宇宙飞船 大地测量学 |
The Figure and Dynamical Parameters of Io Inferred from Internal Structure Models |
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| Hong Zhang and Cheng-Zhi Zhang.The Figure and Dynamical Parameters of Io Inferred from Internal Structure Models[J].Chinese Journal of Astronomy and Astrophysics,2001,1(3):275-280. |
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| Authors: | Hong Zhang and Cheng-Zhi Zhang |
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| Institution: | [1]DepartmentofAstronomy,NanjingUniversity,Nanjing210093 [2]DepartmentofAstronomy,NanjingUniversity,Nanjing |
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| Abstract: | |
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| Keywords: | Io-synchronous orbit-dynamical parameters |
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