Atomic-scale Element and Isotopic Investigation of 25 Mg-rich Stardust from an H-burning Supernova

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Atomic-scale Element and Isotopic Investigation of 25 Mg-rich Stardust from an H-burning Supernova

We have discovered a presolar olivine from ALH 77307 with the highest 25Mg isotopic composition measured in a silicate to date (δ 25Mg = 3025.1‰ ± 38.3‰). Its isotopic compositions challenge current stellar models, with modeling of magnesium, silicon, and oxygen showing a closest match to formation...

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Bibliographic Details
Main Authors:	Nevill, Neville D., Bland, Phil, Saxey, David, Rickard, William, Guagliardo, P., Timms, Nick, Forman, Lucy, Daly, Luke, Reddy, Steven
Format:	Journal Article
Published:	2024
Online Access:	http://hdl.handle.net/20.500.11937/94777

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