Presolar Corundum and Spinel in Ordinary Chondrites: Origins from AGB Stars and a Supernova
Presolar Corundum and Spinel in Ordinary Chondrites: Origins from AGB Stars and a Supernova
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Washington, DC: American Society for the Advancement of Science
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English
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Washington, DC: American Society for the Advancement of Science
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On the basis of anomalous isotopic compositions of oxygen and magnesium, 14 oxide grains from two primitive meteorites (Bishunpur and Semarkona) have been identified as circumstellar condensates. One corundum grain has a high $^{18}$O/$^{16}$O ratio and isotopic compositions of magnesium, calcium, and titanium that are compatible with a formation i...
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Presolar Corundum and Spinel in Ordinary Chondrites: Origins from AGB Stars and a Supernova
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TN_cdi_proquest_miscellaneous_743729967
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_miscellaneous_743729967
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ISSN
0036-8075
E-ISSN
1095-9203
DOI
10.1126/science.282.5392.1284
