Nucleosynthesis in type II supernovae

Presupernova evolution and explosive nucleosynthesis in massive stars for main-sequence masses from 13 Msolar to 70 Msolar are calculated. We examine the dependence of the supernova yields on the stellar mass, ¹²C(α,γ)¹⁶O rate, and explosion energy. The supernova yields integrated over the initial mass function are compared with the solar abundances.