EVOLUTIONARY TRACKS FOR BETELGEUSE

@article{Dolan2008EVOLUTIONARYTF,
  title={EVOLUTIONARY TRACKS FOR BETELGEUSE},
  author={Michelle M. Dolan and Grant J. Mathews and Doan Duc Lam and Nguyen Quynh Lan and Gregory J. Herczeg and David S. P. Dearborn},
  journal={The Astrophysical Journal},
  year={2008},
  volume={819}
}
We have constructed a series of nonrotating quasi-hydrostatic evolutionary models for the M2 Iab supergiant Betelgeuse (α Orionis). Our models are constrained by multiple observed values for the temperature, luminosity, surface composition, and mass loss for this star, along with the parallax distance and high-resolution imagery that determines its radius. We have then applied our best-fit models to analyze the observed variations in surface luminosity and the size of detected surface bright… 

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TLDR
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