Mass-radius relation of low and very low-mass stars revisited with the VLTI

  title={Mass-radius relation of low and very low-mass stars revisited with the VLTI},
  author={B-O. Demory and Damien S{\'e}gransan and Thierry Forveille and Didier Queloz and Jean Luc Beuzit and Xavier Delfosse and Emmanuel di Folco and Pierre Kervella and J.-B. Le Bouquin and Christian Perrier},
  journal={Astronomy and Astrophysics},
We measured the radii of 7 low and very low-mass stars using long baseline interferometry with the VLTI interferometer and its VINCI and AMBER near-infrared recombiners. We use these new data, together with literature measurements, to examine the luminosityradius and mass-radius relations for K and M dwarfs. The precision of the new interferometric radii now competes with what can be obtained for double-lined eclipsing binaries. Interferometry provides access to much less active stars, as well… 
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