1996A&A...308..785Z

Recently published B and V light curves of W Cru have been analyzed by means of the light curve synthesis. A consistent model of the system can be obtained if a thick accretion disk is introduced. The disk completely obscures the more massive, mass accreting star, explaining the problem of its invisibility in the spectrum. In this model, the deeper minimum is the one caused by the eclipse of the mass losing star by the disk. Masses of the components were calculated to be M₁=7.8M_☉, M₂=1.25M_☉, the orbital separation A=299R_☉, while the radius of the secondary R₂=76R_☉. The system seems to be a product of the 'Case-C' mass transfer evolution.