Poster abstract details
Evolution and Nucleosynthesis of AGB stars in Magellanic Cloud clusters
Abstract
In this poster we present new evolutionary sequences for the observed AGB stars in the three Magellanic cloud clusters: NGC 1978, NGC1846, and NGC 419. Using the observed abundances, pulsation masses, effective temperatures, and luminosities we compute new stellar models for AGB stars in these clusters. The stellar evolutionary code has updated opacities as well as an updated
mass-loss formula to reflect the new observations. We compare the HR diagrams from the stellar models to the observed colour
magnitude diagrams. The stellar structure models are used as input to calculate the detailed nucleosynthesis. For NGC 1978 and NGC 1846 we compare our model results to the observationally derived abundances of
carbon, oxygen, and fluorine. For NGC 419 we provide abundance predictions, although there are currently no published abundances. The models will eventually be used for s-process nucleosynthesis studies of post-AGB stars in the Magellanic Clouds.
mass-loss formula to reflect the new observations. We compare the HR diagrams from the stellar models to the observed colour
magnitude diagrams. The stellar structure models are used as input to calculate the detailed nucleosynthesis. For NGC 1978 and NGC 1846 we compare our model results to the observationally derived abundances of
carbon, oxygen, and fluorine. For NGC 419 we provide abundance predictions, although there are currently no published abundances. The models will eventually be used for s-process nucleosynthesis studies of post-AGB stars in the Magellanic Clouds.