Post-Asymptotic Giant Branch Evolution of Low- and Intermediate-Mass Stars. Preliminary Results

MILLER BERTOLAMI, M. M.

Montreal

Congreso; 19th European White Dwarf Workshop.; 2014

 Preliminary results from an ongoing project to compute a grid of post-AGB models is presented. Our preliminary results show that stellar evolution computa-tions that include an updated treatment of the microphysics predict post-AGB timescalesthat are several times shorter that predicted by older models. Also the mass-luminosityrelation of post-AGB models deviates from that of older grids. In addition, our resultssuggest only a slight metallicity dependence of the post-AGB timescales. We expectthese results to have significant consequences for models of the formation of planetarynebulae and their luminosity function.