Evolution of the Earth obliquity after the tidal expansion of the Moon orbit

被引:9
|
作者
Tomasella, L
Marzari, F
Vanzani, V
机构
[1] UNIV PADUA,DIPARTIMENTO FIS,I-35131 PADUA,ITALY
[2] UNIV PADUA,CTR INTERDIPARTIMENTALE STUDI & ATTIVITA SPAZIALI,PADUA,ITALY
关键词
D O I
10.1016/0032-0633(95)00157-3
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The evolution of the Earth obliquity when the tidal interactions of the Earth-Moon system will have expanded the lunar orbit to about 66 and 68 Earth radii is studied. By integrating numerically the differential precession equations for the spin axis of the Earth, it is found that the evolution of the obliquity becomes chaotic due to the resonance overlapping of some Solar System fundamental frequencies. These frequencies have been identified as the s(3), s(4) and s(6) in Laskar's solution (Laskar, Astron. Astrophys. 198, 341, 1988). Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:427 / 430
页数:4
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