| 地月系潮汐演化长期趋势的估计 |
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| 引用本文： | 高懿,萧耐园.地月系潮汐演化长期趋势的估计[J].天文学报,2007,48(4):456-462. |
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| 作者姓名： | 高懿 萧耐园 |
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| 作者单位： | 南京大学天文系,南京,2100930 |
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| 摘 要： | 根据角动量守恒原理,计算了地月系经潮汐演化到达平衡状态时的旋转周期和地月距离.并根据当前与平衡状态时地月系的总能量差,计算了到达平衡状态的时间.进而估计了地月距离变化和地球自转速率变化的长期趋势.
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| 关 键 词： | 太阳系 地球 太阳系 月亮 天体力学 潮汐理论 |
| 修稿时间： | 2006-06-20 |
An Estimation on the Long-period Tendency of the Tidal Evolution of the Earth-lunar System |
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| GAO Yi,XIAO Nai-yuan.An Estimation on the Long-period Tendency of the Tidal Evolution of the Earth-lunar System[J].Acta Astronomica Sinica,2007,48(4):456-462. |
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| Authors: | GAO Yi XIAO Nai-yuan |
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| Institution: | Department of Astronomy, Nanjing University, Nanjing 210093 |
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| Abstract: | The revolution period and the distance between the earth and the moon in the equilibrium state after tidal evolution of the earth-lunar system are calculated according to the principle of angular momentum conservation in this paper.The time for reaching to the equilibrium state is also computed on the basis of the difference between total energy of the earth-lunar system in present time and that in the equilibrium state.The long-period tendency of the variation of distance between the earth and the moon and that of the vari- ation of the earth rotation rate are furthermore estimated. |
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| Keywords: | Solar System Earth Solar System Moon Celestial Mechanics Tidal Theory |
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