Surface convection and red-giant radius measurements

@article{Piau2011SurfaceCA,
  title={Surface convection and red-giant radius measurements},
  author={L. Piau and P. Kervella and S. Dib and P. Hauschildt},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={526}
}
Phenomenological models of convection adopt characteristic length scales that are chosen to fit solar or stellar observations. We investigate whether changes in these length scales are required between the Sun and low mass stars on the red giant branch (RGB). The question is addressed jointly in the frameworks of the mixing length theory and the full spectrum of turbulence model. For both models, the convective length scale is assumed to be a fixed fraction of the local pressure scale height… Expand
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