Galactic evolution models self-enrichment in Globular Clusters AGB stars Infrared luminosity SED of high-redshift quasar Flavia Dell’Agli of galaxies Marcella Di criscienzo Observatory of Rome Paolo Ventura Raffaella Schneider Gas from AGBs contaminated by TDU HBB Gas yields from AGB stars: highly uncertain!!! mixingTDU Convection modelling HBB O C N A laboratory for AGBs: the LMC WHICH DUST FROM AGBs ? Di Criscienzo +, 2013, MNRAS, 433, 313 CARBON DUST TDU SILICATES Z Unfortunately, the uncertainties affecting the evolution of AGBs reflect into the dust formation process.. SILICATES Rome CARBON DUST Heidelbergh Understanding the colour-colour plane of AGBs in the LMC Dell’Agli + 2015, MNRAS, 447, 2992 HBB Can we understand how convection works in AGBs, based on photometric arguments? CARBON STARS Ventura+ 2015, MNRAS, 450, 3181 IR colours of obscured AGBs unaffected by convection modelling !! IR spectroscopy of obscured stars crucial to understand convection in AGBs C/O ≈ 0.4 C/O ≈ 0.03