Evolutionary tracks for Betelgeuse

  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={arXiv: Solar and Stellar Astrophysics},
We have constructed a series of non-rotating quasi-hydrostatic evolutionary models for the M2 Iab supergiant Betelgeuse ($\alpha~Orionis$). 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… Expand
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