1995A&A...294..525Z

V light curves were calculated using a model of a binary system, seen at inclination close to 90 degrees and containing an optically thick accretion disk. Three such generated light curves, differing in the disk contribution, were used to obtain the best solution with the Wilson-Devinney code. Application of a model, which does not account for the disk presence, produces a good fit to input data but leads to spurious values for the star parameters, particularly for the system mass ratio. In case when the disk light is relatively low, modeling of the light curves of high inclination systems in which an optically thick accretion disk completely obscures the accreting star, using a model which does not account for the disk effects, results in contact configuration. We suggest that this may be the case for some long-period, β Lyr-type, binary systems.