منابع مشابه
Presupernova evolution and explosion of massive stars with mass loss
We review the main properties of solar metallicity massive stars in the range 11-120 M⊙. The influence of the mass loss on the hydrostatic burning stages as well as the final explosion is discussed in some detail. We find that the minimum masses that enter the WNL, WNE and WC stages are 30 M⊙, 35 M⊙ and 40 M⊙ respectively; the limiting mass between stars exploding as SNII and SNIb/c is between ...
متن کاملPresupernova Evolution of Differentially Rotating Massive Stars Including Magnetic Fields
As a massive star evolves through multiple stages of nuclear burning on its way to becoming a supernova, a complex, differentially rotating structure is set up. Angular momentum is transported by a variety of classic instabilities, and also by magnetic torques from fields generated by the differential rotation. We present the first stellar evolution calculations to follow the evolution of rotat...
متن کاملPresupernova Evolution of Rotating Massive Stars I: Numerical Method and Evolution of the Internal Stellar Structure
The evolution of rotating stars with zero-age main sequence (ZAMS) masses in the range 8M⊙ to 25M⊙ is followed through all stages of stable evolution. The initial angular momentum is chosen such that the star’s equatorial rotational velocity on the ZAMS ranges from zero to ∼ 70% of break-up. The stars rotate rigidly on the ZAMS as a consequence of angular momentum redistribution during the pre-...
متن کاملPresupernova Evolution of Rotating Massive Stars II: Evolution of the Surface Properties
We investigate the evolution of the surface properties of models for rotating massive stars, i.e., their luminosities, effective temperatures, surface rotational velocities, and surface abundances of all isotopes, from the zero age main sequence to the supernova stage. Our results are based on the grid of stellar models by Heger et al. (2000), which covers solar metallicity stars in the initial...
متن کاملPresupernova Evolution of Rotating Massive Stars and the Rotation Rate of Pulsars
Rotation in massive stars has been studied on the main sequence and during helium burning for decades, but only recently have realistic numerical simulations followed the transport of angular momentum that occurs during more advanced stages of evolution. The results affect such interesting issues as whether rotation is important to the explosion mechanism, whether supernovae are strong sources ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1978
ISSN: 0004-637X,1538-4357
DOI: 10.1086/156569