Comparing the Earth impact flux from comets and near-Earth asteroids

被引：10
作者：
Yeomans, Donald K. [1 ]
Chamberlin, Alan B. [1 ]
机构：
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源：
ACTA ASTRONAUTICA | 2013年 / 90卷 / 01期
基金：
美国国家航空航天局;
关键词：
Comets; Asteroids; Near-Earth objects; Earth impact rates; PERIOD COMETS;
D O I：
10.1016/j.actaastro.2012.03.006
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
When compared to the discovered set of near-Earth asteroids, the Earth impact flux of all known active comets, including Jupiter family comets, Halley-type and long period comets, is below 1%. However, the comet impact fluxes may be higher for those objects large enough to cause extinction level events. (C) 2012 IAA. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：3 / 5
页数：3
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