Fig. 1.

Remnant mass fraction, w/m, as a function of the initial stellar mass, m. The data of AGB stars (1–8 M_⊙) are taken from Karakas (2010) and those of SNe (8–40M_⊙) are taken from Nomoto et al. (2006). The different symbols indicate a different metallicity Z: Z = 0 (plus), Z = 0.0001 (cross), Z = 0.001 (diamond), Z = 0.004 (triangle), Z = 0.008 (circle), and Z = 0.02 (square). The solid line is a fitting function given by Eq. (19).