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Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..402..155m&link_type=abstract
Astrophysical implications of the laboratory study of presolar materials. AIP Conference Proceedings, Volume 402, pp. 155-178 (
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Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, Supernovae, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages
Scientific paper
Stars with masses roughly ten times the mass of the sun die in violent explosions known as Type II supernovae. Element formation occurs in such massive stars both during the pre-explosion evolution and during the explosion itself. The pre-explosion burning takes place in a series of stages starting with the burning of hydrogen and ending once the core reaches Fe. The explosive burning occurs as the shock wave generated during the explosion works its way through the various layers of the star, heating them, and modifying the ashes of the pre-explosive burning. Massive stars eject newly synthesized elements from helium to the actinides. They enrich these elements roughly 15-fold. Such high enrichments allow massive stars to play a major role in the nuclear ``ecology'' of the Galaxy even though only ~6% of the Galaxy's mass has cycled through them.
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