Convective and non-convective mixing in AGB stars
Astrophysics
2007-09-04 v1
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 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.
Keywords
Cite
@article{arxiv.0709.0197,
title = {Convective and non-convective mixing in AGB stars},
author = {Falk Herwig and Bernd Freytag and Tyler Fuchs and James P. Hansen and Robert M. Hueckstaedt and David H. Porter and Francis X. Timmes and Paul R. Woodward},
journal= {arXiv preprint arXiv:0709.0197},
year = {2007}
}
Comments
Invited conference paper given at "Why Galaxies Care About AGB Stars", Vienna, August 7-11, 2006, to appear in ASP Conference Series