Carbon and nitrogen isotopic ratios in supernova models of low metallicity stars and presolar grains from supernovae

Details Carbon and nitrogen isotopic ratios in supernova models of low metallicity stars and presolar grains from supernovae Carbon and nitrogen isotopic ratios in supernova models of low metallicity stars and presolar grains from supernovae

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003nupha.718..469y&link_type=abstract

Nuclear Physics A, Volume 718, p. 469-471.

Physics

Nuclear Physics

Scientific paper

We investigate the possible range of the isotopic ratios of carbon and nitrogen in the mixture of different layers of supernovae with Z = Zsolarand Z = 0.1Zsolar. We carry out the postprocessing nucleosynthesis calculations using the evolution profile of 4 Msolar He stars and that of the following supernova explosions to obtain abundance distributions. Main difference due to the metallicity is found in the range of the isotopic ratios of the mixture between the He/C-layer and the He/N-layer. Most of the isotopic ratios of SiC type X grains are inside the range of the isotopic ratios of the mixture between the He/C-layer and the He/N- or Si/S-layer of the supernova models.

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