VY Canis Majoris: The Astrophysical Basis of Its Luminosity

Preprint English OPEN
Humphreys, Roberta M.;
  • Subject: Astrophysics
    arxiv: Astrophysics::Galaxy Astrophysics | Astrophysics::Cosmology and Extragalactic Astrophysics | Astrophysics::Solar and Stellar Astrophysics

The luminosity of the famous red supergiant VY CMa (L ~ 4 - 5 x 10e5 Lsun) is well-determined from its spectral energy distribution and distance, and places it near the empirical upper luminosity limit for cool hypergiants. In contrast, its surface temperature is fundam... View more
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