Fig. 1. ²⁶Al yields used in this work. Left panel: ²⁶Al yields as function of initial stellar mass for Wolf-Rayet stars (Meynet et al. 1997, MAPP97, triangles) and type II supernovae (Woosley & Weaver 1995, WW95: diamonds). The inset shows ²⁶Al yields for Helium stars as function of the initial He mass (Woosley et al. 1995, WLW95). Right panel: ²⁶Al yields as function of initial stellar mass after combining the nucleosynthesis models with the evolutionary tracks (see text). For type Ib/c supernovae, 3 link parameters (: thin solid line, : dashed-dotted, : dashed) have been explored, which lead to comparable ²⁶Al yields. The resulting total yield, obtained using , is shown by the thick solid line