Neptune scattered planetesimals could have sculpted the primordial Edgeworth-Kuiper belt

被引:52
作者
Morbidelli, A [1 ]
Valsecchi, GB [1 ]
机构
[1] CNR, IST ASTROFIS SPAZIALE, REPARTO PLANETOL, ROME, ITALY
关键词
D O I
10.1006/icar.1997.5745
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We show that Neptune-scattered planetesimals of a few Earth masses could have excited the eccentricities of the vast majority of bodies in the primordial Edgeworth-Kuiper belt. This could result in sculpting the belt to its currently observed structure and in depleting most of its primordial mass by: (i) injecting most of the bodies from the stable into the unstable regions in the inner belt; (ii) enhancing the role of mutual catastrophic collisions in the outer belt. (C) 1997 Academic Press.
引用
收藏
页码:464 / 468
页数:5
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