Origin of heavy xenon in meteoritic diamonds
نویسندگان
چکیده
منابع مشابه
The Petrography of Meteoritic Nano-diamonds
Introduction: At least some meteoritic nano-diamonds are likely of presolar origin because of their association with anomalous Xe-HL and Te isotopic components indicative of a supernova (SN) origin [1,2]. But the abundance of Xe is such that only ~1 in 10 6 nano-diamonds contains a Xe atom, and the bulk 13 C/ 12 C composition of nano-diamond acid residues is chondritic (solar) [3]. Therefore, i...
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Xenon in the Presolar Diamonds: The finest grains of nanodiamonds identified in the carbonaceous and nonequilibrium ordinary chondrites are the most abundant relic grains, for which, as well as for the silicon carbide and graphite, the presolar origin is assumed [1].They could be apparently formed by condensation in cool stellar atmospheres or in the extreme PT-conditions of reprocessing the ma...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1989
ISSN: 0004-637X,1538-4357
DOI: 10.1086/167422