Depletion of the outer asteroid belt

被引：45

作者：

Liou, JC ^{[1
]}

Malhotra, R ^{[1
]}

机构：

[1] LUNAR & PLANETARY INST, HOUSTON, TX 77058 USA

来源：

SCIENCE | 1997年 / 275卷 / 5298期

关键词：

D O I：

10.1126/science.275.5298.375

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

During the early history of the soar system, it is likely that the outer planets changed their distance from the sun, and hence, their influence on the asteroid belt evolved with time. The gravitational influence of Jupiter and Saturn on the orbital evolution of asteroids in the outer asteroid belt was calculated. The results show that the sweeping of mean motion resonances associated with planetary migration efficiently destabilizes orbits in the outer asteroid belt on a time scale of 10 million years. This mechanism provides an explanation for the observed depletion of asteroids in that region.

引用

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页码：375 / 377

页数：3

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