Asteroids: Shattered but not dispersed

被引：105

作者：

Melosh, HJ ^{[1
]}

Ryan, EV ^{[1
]}

机构：

[1] PLANETARY SCI INST,TUCSON,AZ 85705

来源：

ICARUS | 1997年 / 129卷 / 02期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1006/icar.1997.5797

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use a combination of scaling laws and direct hydrocode computations that include material strength to show that the impact energy needed to disperse an asteroid is greater than that to thoroughly shatter it for asteroids larger than about 400 m in radius. Thus, asteroids larger than this size should probably be considered to be gravitationally bound, but otherwise strengthless, rubble piles. (C) 1997 Academic Press.

引用

页码：562 / 564

页数：3

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