Convective and non-convective mixing in AGB stars

Autor:	Herwig, Falk, Freytag, Bernd, Fuchs, Tyler, Hansen, James P., Hueckstaedt, Robert M., Porter, David H., Timmes, Francis X., Woodward, Paul R.
Rok vydání:	2007
Předmět:	Astrophysics
Druh dokumentu:	Working Paper
Popis:	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. Comment: Invited conference paper given at "Why Galaxies Care About AGB Stars", Vienna, August 7-11, 2006, to appear in ASP Conference Series
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0709.0197 Zobrazit plný text záznamu View this record from Arxiv