Lifetime (upper panel) and remnant mass, M_*, final (lower panel), of a star as a function of its initial mass, M_*, initial, and metal mass fraction, Z (or [Z] as defined in Eq. (5)). The shown relations are one-dimensional smoothing spline fits to the stellar evolution tables given by Marigo (2001) and Portinari et al. (1998) for AGB and massive stars, respectively. The colour-coding is the same as in Figs. 5 and A.1.