The role of convection in AGB modeling
Abstract
The modeling of the Asymptotic Giant Branch phase is made highly uncertain by some still unsolved issues related to the input macro-physics used to calculate the stellar evolution, namely mass loss, nuclear cross sections, overshooting and convective modeling. We show that in the massive intermediate mass models, which achieve at the bottom of their convective envelope temperatures sufficiently high to favour an advanced nucleosynthesis, the treatment of convection plays a major role in determining the physical and chemical evolution of the stellar models during this evolutionary phase.
- Publication:
-
Convection in Astrophysics
- Pub Date:
- May 2007
- DOI:
- 10.1017/S174392130700052X
- Bibcode:
- 2007IAUS..239..258V
- Keywords:
-
- Convection;
- stars: evolution: AGB