Massive stars on the verge of exploding: the properties of oxygen sequence Wolf-Rayet stars

  title={Massive stars on the verge of exploding: the properties of oxygen sequence Wolf-Rayet stars},
  author={F. Tramper and S. Straal and D. Sanyal and H. Sana and A. Koter and G. Grafener and N. Langer and J. Vink and S. D. Mink and L. Kaper},
  journal={arXiv: Solar and Stellar Astrophysics},
Context. Oxygen sequence Wolf-Rayet (WO) stars represent a very rare stage in the evolution of massive stars. Their spectra show strong emission lines of helium-burning products, in particular highly ionized carbon and oxygen. The properties of WO stars can be used to provide unique constraints on the (post-)helium burning evolution of massive stars, as well as their remaining lifetime and the expected properties of their supernovae. Aims. We aim to homogeneously analyse the currently known… Expand

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