Improving the surface brightness-color relation for early-type stars using optical interferometry

  title={Improving the surface brightness-color relation for early-type stars using optical interferometry},
  author={M. Challouf and Nicolas Nardetto and Denis Mourard and Dariusz Graczyk and Hassen Aroui and Olivier Chesneau and Omar Delaa and Grzegorz Pietrzy'nski and Wolfgang Gieren and Roxanne Ligi and Anthony Meilland and K. Perraut and I. Tallon-Bosc and Harold A. Mcalister and Theo A. ten Brummelaar and Judit Sturmann and Laszlo Sturmann and Nils H. Turner and Christopher D. Farrington and Norm Vargas and Nicholas J. Scott},
  journal={arXiv: Solar and Stellar Astrophysics},
The aim of this work is to improve the SBC relation for early-type stars in the $-1 \leq V-K \leq 0$ color domain, using optical interferometry. Observations of eight B- and A-type stars were secured with the VEGA/CHARA instrument in the visible. The derived uniform disk angular diameters were converted into limb darkened angular diameters and included in a larger sample of 24 stars, already observed by interferometry, in order to derive a revised empirical relation for O, B, A spectral type… 

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