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 $\alpha$ 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

Figures from this paper

Combining observational techniques to constrain convection in evolved massive star models
The surface abundances of red supergiants at core collapse
Interplay between pulsations and mass loss in the blue supergiant 55 Cygnus = HD 198 478
The Luminosity Function of Red Supergiants in M31
Evolution models of red supergiants
  • C. Georgy
  • Physics
  • Proceedings of the International Astronomical Union
  • 2016
Surface abundances of ON stars
...
1
2
3
4
...

References

SHOWING 1-10 OF 15 REFERENCES
Evolution of blue supergiants and α Cygni variables: puzzling CNO surface abundances
Mixing of CNO-cycled matter in massive stars
Models of rotating massive stars: impacts of various prescriptions
...
1
2
...