r-process in Type II supernovae and the role of direct capture

We have calculated r‐process nucleosynthesis based on acoustic wave driven supernova simulation. The environment includes extremely high entropy cases which has not been studied in previous studies. Plenty of actinide and third peak elements are formed in an averaged abundance, while elements around the first and second peaks are overproduced. We also studied the effect of direct capture in r‐process. The direct capture furthers r‐process and make freeze out earlier. It will change the final abundance drastically. We recalculated r‐process nucleosynthesis of the simulation considering the direct capture reaction. While we could not see a significant difference in averaged abundances, significant differences appeared in several individual yields.