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Paper: Convective and Non-Convective Mixing in AGB Stars
Volume: 378, Why Galaxies Care About AGB Stars: Their Importance as Actors and Probes
Page: 43
Authors: Herwig, F.; Freytag, B.; Fuchs, T.; Hansen, J.P.; Hueckstaedt, R.M.; Porter, D.H.; Timmes, F.X.; Woodward, P.R.
Abstract: We review the current state of modeling convective mixing in AGB stars. The focus is on results obtained through multi-dimensional hydrodynamic simulations of AGB convection, both in the envelope and in the unstable He-shell. Using two different codes and a wide range of resolutions and modeling assumptions we find that mixing across convective boundaries is significant for He-shell flash convection. We present a preliminary quantitative analysis of this convectively induced extra mixing, based on a sub-set of our simulations. Other non-standard mixing will be discussed briefly.
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