Evidence of quasi-chemically homogeneous evolution of massive stars up to solar metallicity

@article{Martins2013EvidenceOQ,
  title={Evidence of quasi-chemically homogeneous evolution of massive stars up to solar metallicity},
  author={Fabrice Martins and {\'E}ric Depagne and Delphine Russeil and Laurent Mahy},
  journal={Astronomy and Astrophysics},
  year={2013},
  volume={554}
}
Context. Long soft gamma-ray bursts (LGRBs) are usually associated with the death of the most massive stars. A large amount of core angular momentum in the phases preceding the explosion is required to form LGRBs. A very high initial rotational velocity can provide this angular momentum. This velocity strongly influences the way the star evolves: it is mixed in a chemically homogeneous way and evolves directly towards the blue part of the Hertzsprung-Russell (HR) diagram from the main sequence… Expand
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