Stellar evolution of massive stars up the Asymptotic Giant Branch

PANEI J. A.; BENVENUTO O. G.

Córdoba, Argentina

Congreso; X Reunión Regional Latinoamericana de Astronomía - Unión Astronómica Internacional; 2001

Unión Astronómica Internacional

The aim of this work is to show the evolution of masive stars with a full spectum of turbulence convective mixing. We present results for stars with masses of 4.0, 4.5, 5.0, 5.5, 6.0, 7.0, 8.0, 9.0 and 10.0 M_sun. We compute the evolution from these masses from the pre-main sequence up to the Asymptotic Giant Branch (AGB). Several authors use a treatment with an instantaneous mixing for the convective regions, but we use a turbulence convective mixing that take account the convective region as a whole. We employed a nuclear rates with thirty isotopes and one hundred seventy five reactions.