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Showing 1 to 2 of 2 for “"born-again AGB stars"”.
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Microanalytical Investigations of Presolar SiC Grains as Probes of Condensation Conditions in Astrophysical Environments
… environments, including asymptotic giant branch: AGB) stars, J stars, born-again AGB stars, and Type II supernovae: SNe). The isotopic compositions and microstructural properties of a large number of presolar grains have previously been measured, but the two techniques have been combined in the …
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Multi-element isotopic analyses of presolar graphite grains from the Orgueil meteorite
… from low-metallicity asymptotic giant branch stars. Evidence for this comes from correlated <super>12</super>C and <super>30</super>Si enrichments. In low-metallicity asymptotic giant branch stars, <super>12</super>C and <super>29,30</super>Si that are produced in the He shell are mixed into …