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Explosions of Helium Stars and Type IB/IC/IIB Supernovae

Published online by Cambridge University Press:  03 August 2017

K. Nomoto
K. Nomoto*
Affiliation:
Department of Astronomy, Faculty of Science, University of Tokyo, Tokyo 113

Abstract

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Theoretical models of supernova explosions of helium stars with various masses are reviewed to examine possible connections between Wolf-Rayet stars and Type Ib/Ic/IIb supernovae. Nucleosynthesis, Rayleigh-Taylor instabilities, and light curves are compared with observations. Maximum brightness and the fast decline of the light curves of typical SNe Ib/Ic can be well accounted for by the helium star models if the helium star mass is as low as 3-5 M⊙. These low mass helium stars can form from stars of 12-18 M⊙ after Roche-lobe overflow in close binary systems. Probably progenitors of typical SNe Ib/Ic are not classified as Wolf-Rayet stars.

Type
Session VII. Evolution
Information
Symposium - International Astronomical Union , Volume 143: Wolf–Rayet Stars and Interrelations with other Massive Stars in Galaxies , 1991 , pp. 515 - 528
Copyright
Copyright © Kluwer 1991 

References

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