Optically thin circumstellar medium in the<i>β</i>Lyr A system
Optically thin circumstellar medium in the<i>β</i>Lyr A system
beta Lyr A is a complex binary system with an extensive observational dataset: light curves (from FUV to FIR), interferometric squared visibility, closure phase, triple product measurements, spectral-energy distribution (SED), high-resolution spectroscopy, differential visibility amplitude, and also differential phase. In particular, we use spectra from Ondrejov 2m telescope from 2013 …