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Interferometric observations of the supergiant stars<i>α</i> Orionis and<i>α</i> Herculis with FLUOR at IOTA

Interferometric observations of the supergiant stars<i>α</i> Orionis and<i>α</i> Herculis with FLUOR at IOTA

We report the observations in the K band of the red supergiant star α Orionis and of the bright giant star α Herculis with the FLUOR beamcombiner at the IOTA interferometer.The high quality of the data allows us to estimate limb-darkening and derive precise diameters in the K band which …