Nucleosynthesis and composition at the cosmic ray source

Details Nucleosynthesis and composition at the cosmic ray source Nucleosynthesis and composition at the cosmic ray source

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..19..729m&link_type=abstract

Advances in Space Research, Volume 19, Issue 5, p. 729-738.

Computer Science

Scientific paper

We review the nucleosynthesis occurring in massive stars and present the composition of the ejecta from a star 25 times more massive than the Sun. Primary isotopes, such as ^16O and the r-process nuclei, are enriched by about a factor of ten to fifteen over their initial abundances. Some secondary isotopes, particularly the light s-process nuclei, may also be highly enriched. Enhancements of these isotopes in cosmic ray abundances would indicate acceleration of massive star ejecta prior to mixing with the interstellar medium.

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