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Constraints on AGB models from the heavy-element composition of presolar SiC grains
M. Lugaro, A. M. Davis, R. Gallino +2
Presolar SiC grains formed around Asymptotic Giant Branch (AGB) stars during their carbon-rich phase and contain heavy elements in trace amounts showing the signature of the slow n…
HR4049: signature of nova nucleosynthesis ?
Maria Lugaro, Onno Pols, Amanda I. Karakas +1
The post-Asymptotic Giant Branch (AGB) star HR4049 is in an eccentric binary system with a relatively short period probably surrounded by a dusty circumbinary disk. Extremely anoma…
Reaction Rates Uncertainties and the Production of F19 in AGB Stars
Maria Lugaro, Claudio Ugalde, Amanda I. Karakas +4
We present nucleosynthesis calculations and the resulting 19F stellar yields for a large set of models with different masses and metallicity. We find that the production of fluorin…