The Missing Luminous Blue Variables and the Bistability Jump

@article{Smith2004TheML,
  title={The Missing Luminous Blue Variables and the Bistability Jump},
  author={N. Smith and J. Vink and A. Koter},
  journal={The Astrophysical Journal},
  year={2004},
  volume={615},
  pages={475-484}
}
We discuss an interesting feature of the distribution of luminous blue variables (LBVs) on the H-R diagram, and we propose a connection with the bistability jump seen in the winds of early-type supergiants. There appears to be a deficiency of quiescent LBVs on the S Doradus instability strip at luminosities between log(L/Lsolar)~=5.6 and 5.8. The upper boundary, interestingly, is also where the temperature-dependent S Doradus instability strip intersects the bistability jump at about Teff~=21… Expand

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