The evolution of massive stars and the origin of the elements

Details The evolution of massive stars and the origin of the elements The evolution of massive stars and the origin of the elements

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980entr.....q...1.&link_type=abstract

Energy and Technology Review, Feb. 1980, p. 1-16.

Computer Science

Chemical Composition, Stellar Evolution, Stellar Structure, Supermassive Stars, Energy Dissipation, Gravitational Collapse, Hydrogen, Light Curve, Neutrinos, Nuclear Fusion, Shock Waves, Supernovae

Scientific paper

The first 8 to 14 million years in the life of a massive star are considered, in which its initial composition of hydrogen is hydrostatically burned into a sequence of heavier elements ending with iron. Models of 15 and 25 solar masses are examined with regard to pre-supernova evolution and structure, core collapse, and shock-wave formation. Explosive nucleosynthesis is also discussed, considering peak shock temperatures and zones of explosive neon burning. Attention is given to type II supernova light curves, supernova expansion velocities, energy losses from neutrino emission, degeneracy pressure, gravitational contraction, and iron photodisintegration.

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