Study of molecular layers in the atmosphere of the supergiant star $\mu$ Cep by interferometry in the K band

  title={Study of molecular layers in the atmosphere of the supergiant star \$\mu\$ Cep by interferometry in the K band},
  author={G. Perrin and S. Ridgway and T. Verhoelst and P. Schuller and V. C. Foresto and W. Traub and R. Millan-Gabet and M. Lacasse},
  journal={Astronomy and Astrophysics},
Infrared interferometry of supergiant and Mira stars has recently been reinterpreted as revealing the presence of deep molecular layers. Empirical models for a photosphere surrounded by a simple molecular layer or envelope have led to a consistent interpretation of previously inconsistent data. The stellar photospheres are found to be smaller than previously understood, and the molecular layer is much higher and denser than predicted by hydrostatic equilibrium. However, the analysis was based… Expand

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