Radius measurement in binary stars: simulations of intensity interferometry

Mass and radius measurements of stars are important inputs for models stellar structure. Binary particular interest in this regard, because astrometry spectroscopy a binary together provide the masses both as well distance to system, while interferometry can improve measure radii stars. In work we simulate parameter recovery from intensity interferometry, especially challenge disentangling two their combined interferometric signal. Two approaches considered: separation visibility contributions each star with help differing brightness ratios at different wavelengths, direct fitting correlation multi-parameter model. Full image reconstructions is not attempted. Measurement angular radii, first-order limb-darkening appears readily achievable bright current instrumentation.