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Supernovae from Wolf-Rayet Stars

Published online by Cambridge University Press:  03 August 2017

Norbert Langer  and
Stanford E. Woosley
Norbert Langer
Affiliation:
1: Universitäts-Sternwarte Göttingen, F.R.G.
Stanford E. Woosley
Affiliation:
2: Lick Observatory, UC Santa Cruz, U.S.A.

Extract

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The complete evolution of a star with an initial mass of 60 M⊙ and Z = Z⊙ (i.e. a typical W R progenitor) from the ZAMS through the supernova phase has been investigated. Mass loss in the different evolutionary stages, especially mass dependent W R mass loss, leads to a WO star (surface mass fractions {He,C,O} = {0.14, 0.38, 0.48}; cf. Fig. 1) of 4 . 2 M⊙ as pre-SN configuration. The low final mass may be typical for a wide range of initial masses (cf. Langer, 1989, Astr. Ap. 220, 135).

Type
Session VII. Evolution
Information
Symposium - International Astronomical Union , Volume 143: Wolf–Rayet Stars and Interrelations with other Massive Stars in Galaxies , 1991 , pp. 566
Copyright
Copyright © Kluwer 1991