Bringing VY Canis Majoris Down to Size: An Improved Determination of Its Effective Temperature

@article{Massey2006BringingVC,
  title={Bringing VY Canis Majoris Down to Size: An Improved Determination of Its Effective Temperature},
  author={P. Massey and E. Levesque and B. Plez},
  journal={The Astrophysical Journal},
  year={2006},
  volume={646},
  pages={1203-1208}
}
The star VY CMa is a late-type M supergiant with many peculiarities, mostly related to the intense circumstellar environment due to the star's high mass-loss rate. Claims have been made that would imply that this star is considerably more luminous (L ~ 5 × 105 L☉) and larger (R ~ 2800 R☉) than other Galactic red supergiants (RSGs). Indeed, such a location in the H-R diagram would be well within the "Hayashi forbidden zone," where stars cannot be in hydrostatic equilibrium. These extraordinary… Expand
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