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Mass loss and fate of the most massive stars

Published online by Cambridge University Press:  05 September 2012

Jorick S. Vink
Jorick S. Vink*
Affiliation:
Armagh Observatory, College Hill, BT61 9DG, Armagh, United Kingdom email: [email protected]
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Abstract

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The fate of massive stars up to 300M⊙ is highly uncertain. Do these objects produce pair-instability explosions, or normal Type Ic supernovae? In order to address these questions, we need to know their mass-loss rates during their lives. Here we present mass-loss predictions for very massive stars (VMS) in the range of 60-300M⊙. We use a novel method that simultaneously predicts the wind terminal velocities v∞ and mass-loss rate Ṁ as a function of the stellar parameters: (i) luminosity/mass Γ, (ii) metallicity Z, and (iii) effective temperature Teff. Using our results, we evaluate the likely outcomes for the most massive stars.

Keywords

stars: mass lossstars: evolutionstars: Wolf-Rayetsupernovae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S279: Death of Massive Stars: Supernovae and Gamma-Ray Bursts , April 2011 , pp. 29 - 33
Copyright
Copyright © International Astronomical Union 2012

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