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| Paper: |
Massive Star Evolution at Low Metallicity – What We Don't Know |
| Volume: |
353, Stellar Evolution at Low Metallicity: Mass Loss, Explosions, Cosmology |
| Page: |
15 |
| Authors: |
Langer, N. |
| Abstract: |
Massive stars of low metallicity (Z ≤ 0.004) can not be observed individually – except when they explode. We thus lack detailed information about their evolution. Here, we summarize the current status of this ignorance, and highlight paths to obtain knowledge on key features of massive stars at low metallicity. We discuss the impact of mass loss and rotation, and the feedback introduced by their interaction at low metallicity. We discuss the uncertainties for the evolution of low metallicity massive stars in general, and explore possible consequences for the progenitor evolution of massive X-ray binaries and gamma-ray burst progenitors. |
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