Invited_talk abstract details
AGB evolution: new theoretical results
Abstract
Key properties of Planetary Nebulae (mass of the central star, chemical abundances, dynamics)depend critically on the evolution of the progenitor star during
the Asymptotic Giant Branch (AGB) phase.
At present the modeling of this phase is still affected by severe uncertainties due to our poor knowledge of processes like mass loss and convection.
On the other hand, strong constraints to AGB models are set by observations,
e.g. Galactic initial-final mass relation, luminosity functions of C and M type stars in the Magellanic Clouds and other nearby galaxies, number counts of AGB stars in star clusters, chemical abundances in PNe, near- and mid-infrared photometric surveys of AGB star populations.
In this framework, I will review the most recent results of AGB modeling, highlighting the improvements and pointing out the weak points that still deserve major effort.
the Asymptotic Giant Branch (AGB) phase.
At present the modeling of this phase is still affected by severe uncertainties due to our poor knowledge of processes like mass loss and convection.
On the other hand, strong constraints to AGB models are set by observations,
e.g. Galactic initial-final mass relation, luminosity functions of C and M type stars in the Magellanic Clouds and other nearby galaxies, number counts of AGB stars in star clusters, chemical abundances in PNe, near- and mid-infrared photometric surveys of AGB star populations.
In this framework, I will review the most recent results of AGB modeling, highlighting the improvements and pointing out the weak points that still deserve major effort.