AN ANALYSIS OF CLOSE BINARIES (CB) BASED ON PHOTOMETRIC MEASUREMENTS .5. AN INTERPRETATION OF CB LIGHT-CURVE RX CAS BY USING THE INVERSE PROBLEM METHOD

The author considers the current problematics in the determination of the orbital and physical parameters for active close binaries (CB) of W Ser type based on the interpretation of photometric observations. In the particular case one analyses the light curves of CB RX Cas in the framework of the accretion-disc model explained in the second paper o f this series (Djuragevic, 1992a). The change of the light curves with that of the system's physical-activity phase is analysed and the orbi tal and physical parameters of the system are determined for the maxim um, minimum and the transition regime of the physical activity by appl ying the inverse-problem method described in the third paper of the se ries (Djuragevic, 1992b). In the paper a graphical illustration of the solutions obtained is also given.