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

K. Otsuki, A. Burrows, G. Martinez-Pinedo, S. Typel, K. Langanke, M. Matos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


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.

Original languageEnglish (US)
Title of host publicationTours Symposium on Nuclear Physics and Astrophysics - VII
Number of pages3
StatePublished - 2010
Event7th Tours Symposium on Nuclear Physics and Astrophysics - Kobe, Japan
Duration: Nov 16 2009Nov 20 2009

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other7th Tours Symposium on Nuclear Physics and Astrophysics

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


  • Astrophysics
  • Supernova
  • r-process


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