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...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Published: |
2024
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| Online Access: | http://hdl.handle.net/20.500.11937/94777 |