Poster abstract details

We review the stellar mass loss of red giants and tip-AGB objects analizing the variation in the expansion velocity for different mass models (Wachter 2002). We approach the superwind problem and see the evolution of tip-AGB stars via previously made mass-loss histories that are consistent with the Weidemann (1987) initial-final mass relationship (for carbon-rich stars). Finally density profiles are made from this mass-loss histories, and the corresponding LOS integration is compared with recent data published (Phillips et al. 2009). We note the resemblance between the results obtained with our models and the observational data. So we are able to reproduce the general trends of the emission from simple models, without need of complex physics.