Abstracts for fall meeting of the Japanese Society for Planetary Science
Abstracts 2004 Fall Meeting of the Japanese Society for Planetary Sciences
Session ID : 801
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Oral session 8: Oct. 16, 09:00-10:31
Si Synthesis and Si Isotopic Ratios in Supernovae
*Takashi YoshidaHideyuki UmedaKen'ichi Nomoto
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Abstract
In order to reproduce Si isotopic ratios in presolar grains from supernovae, we investigate Si isotopic ratios in the mixtures of supernova ejecta. We calculate detailed nucleosynthesis of the supernova explosions using He star models. When we consider the mixing of Ni, Si/S, He/C, and He/N-layers, Si isotopic ratios of the mixtures of 3.3 M supernova model and 8 M hypernova model well reproduce those of presolar grains from supernovae.
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© 2004 The Japanese Society for Planetary Science
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