Radio Photosphere and Mass-Loss Envelope of VY Canis Majoris

@article{Lipscy2005RadioPA,
  title={Radio Photosphere and Mass-Loss Envelope of VY Canis Majoris},
  author={S. Lipscy and M. Jura and M. J. R. Ucla and Ball AerospaceTechnologies Corp. and H. F. Astrophysics},
  journal={The Astrophysical Journal},
  year={2005},
  volume={626},
  pages={439-445}
}
We have used the VLA to detect emission from the supergiant VY CMa at radio wavelengths and have constructed 3000-4500 K isothermal outer atmospheres constrained by the data. These models produce a radio photosphere at 1.5-2 R*. An extrapolation of the model can account for the observed total mass-loss rate of the star. We also present mid-infrared imaging of the supergiant which suggests that warm dust is extended in the same direction as the near-infrared reflection nebula around VY CMa. The… Expand
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