A giant impact origin of Pluto-Charon

被引：208
|
作者：
Canup, RM [1 ]
机构：
[1] SW Res Inst, Boulder, CO 80302 USA
[2] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
来源：
SCIENCE | 2005年 / 307卷 / 5709期
关键词：
D O I：
10.1126/science.1106818
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：
Pluto and its moon, Charon, are the most prominent members of the Kuiper belt, and their existence holds clues to outer solar system formation processes. Here, hydrodynamic simulations are used to demonstrate that the formation of Pluto-Charon by means of a large collision is quite plausible. I show that such an impact probably produced an intact Charon, although it is possible that a disk of material orbited Pluto from which Charon later accumulated. These findings suggest that collisions between 1000-kilometer-class objects occurred in the early inner Kuiper belt.
引用
收藏
页码：546 / 550
页数：5
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