The evolution of massive stars including mass loss - Presupernova models and explosion

Details The evolution of massive stars including mass loss - Presupernova models and explosion The evolution of massive stars including mass loss - Presupernova models and explosion

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...411..823w&link_type=abstract

Astrophysical Journal - Part 1 (ISSN 0004-637X), vol. 411, no. 2, p. 823-839.

Astronomy and Astrophysics

Astrophysics

205

Astronomical Models, Massive Stars, Nuclear Explosion Effect, Stellar Evolution, Stellar Mass Ejection, Supernovae, Gravitational Collapse, Light Curve, Nuclear Fusion, Stellar Interiors, Wolf-Rayet Stars

Scientific paper

The evolution of massive stars of 35, 40, 60, and 85 solar masses is followed through all stages of nuclear burning to the point of Fe core collapse. Critical nuclear reaction and mass-loss rates are varied. Efficient mass loss during the Wolf-Rayet (WR) stage is likely to lead to final masses as small as 4 solar masses. For a reasonable parameterization of the mass loss, there may be convergence of all WR stars, both single and in binaries, to a narrow band of small final masses. Our representative model, a 4.25 solar-mass WR presupernova derived from a 60 solar mass star, is followed through a simulated explosion, and its explosive nucleosynthesis and light curve are determined. Its properties are similar to those observed in Type Ib supernovae. The effects of the initial mass and mass loss on the presupernova structure of small mass WR models is also explored. Important properties of the presupernova star and its explosion can only be obtained by following the complete evolution starting on the main sequence.

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