The chemical composition of an extrasolar minor planet

被引：238
|
作者：
Zuckerman, B. [1 ,2 ]
Koester, D. [3 ]
Melis, C. [1 ,2 ]
Hansen, Brad M. [1 ,2 ]
Jura, M. [1 ,2 ]
机构：
[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Ctr Astrobiol, Los Angeles, CA 90095 USA
[3] Univ Kiel, Inst Theoret Phys & Astrophys, D-24098 Kiel, Germany
来源：
ASTROPHYSICAL JOURNAL | 2007年 / 671卷 / 01期
关键词：
planetary systems; stars : abundances; white dwarfs;
D O I：
10.1086/522223
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the relative abundances of 17 elements in the atmosphere of the white dwarf star GD 362, material that, very probably, was contained previously in a large asteroid or asteroids with composition similar to the Earth-Moon system. The asteroid may have once been part of a larger parent body not unlike one of the terrestrial planets of our solar system.
引用
收藏
页码：872 / 877
页数：6
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