Astrophysics
[Submitted on 1 Aug 2007]
Title:The Chemical Composition of an Extrasolar Minor Planet
View PDFAbstract: 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.
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