The puzzle of the CNO abundances of α Cygni variables resolved by the Ledoux criterion

@article{Georgy2014ThePO,
  title={The puzzle of the CNO abundances of α Cygni variables resolved by the Ledoux criterion},
  author={C. Georgy and H. Saio and G. Meynet},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2014},
  volume={439}
}
Recent stellar evolution computations show that the blue supergiant (BSG) stars could come from two distinct populations: a first group arising from massive stars that just left the main sequence (MS) and are crossing the Hertzsprung-Russell diagram (HRD) towards the red supergiant (RSG) branch, and a second group coming from stars that have lost considerable amount of mass during the RSG stage and are crossing the HRD for a second time towards the blue region. Due to very different luminosity… Expand
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References

SHOWING 1-10 OF 15 REFERENCES
Evolution of blue supergiants and α Cygni variables: puzzling CNO surface abundances
  • 48
  • PDF
Yellow supergiants as supernova progenitors: an indication of strong mass loss for red supergiants?
  • 92
  • PDF
Grids of stellar models with rotation - II. WR populations and supernovae/GRB progenitors at Z = 0.014
  • 173
  • PDF
Mixing of CNO-cycled matter in massive stars
  • 95
  • PDF
Models of rotating massive stars: impacts of various prescriptions
  • 27
  • PDF
The effective temperature scale of galactic red supergiants : Cool, but not as cool as we thought
  • 316
  • PDF
Massive star evolution: luminous blue variables as unexpected supernova progenitors
  • 91
  • PDF
...
1
2
...