The close circumstellar environment of Betelgeuse - IV. VLTI/PIONIER interferometric monitoring of the photosphere

@article{Montargs2016TheCC,
  title={The close circumstellar environment of Betelgeuse - IV. VLTI/PIONIER interferometric monitoring of the photosphere},
  author={M. Montarg{\`e}s and P. Kervella and G. Perrin and A. Chiavassa and J. Bouquin and M. Auri{\`e}re and A. L'opez-Ariste and P. Mathias and S. Ridgway and S. Lacour and X. Haubois and J. Berger},
  journal={Astronomy and Astrophysics},
  year={2016},
  volume={588}
}
Context. The mass-loss mechanism of cool massive evolved stars is poorly understood. The proximity of Betelgeuse makes it an appealing target to study its atmosphere, map the shape of its envelope, and follow the structure of its wind from the photosphere out to the interstellar medium. Aims. A link is suspected between the powerful convective motions in Betelgeuse and its mass loss. We aim to constrain the spatial structure and temporal evolution of the convective pattern on the photosphere… Expand
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