Nucleosynthesis and composition at the cosmic ray source

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 is...

Full description

Saved in:
Bibliographic Details
Published in:Advances in space research 1997-01, Vol.19 (5), p.729-738
Main Authors: Meyer, B.S, Luo, N, The, L.-S, El Eid, M.F
Format: Article
Language:English
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0273-1177
1879-1948
DOI:10.1016/S0273-1177(96)00136-6