On the Question of the Behavior of O-C Residuals of the Active Algol-Like Binary RZ Cassiopeiae
Alex Golovin, Elena Pavlenko
Abstract
We present an analysis of the RZ Cassiopeia O-C diagram for a 30-year period, based on data published by the AAVSO. The new parabolic light-elements are determined and P-dot was estimated. This enabled us to establish the value of M-dot, the rate of the mass transfer between components of this eclipsing binary. Deviations from the parabola in the RZ Cas O-C diagram have a wavelike trend. The pulsation of the primary component influences the scatter of O-C points, as well as it influences the shape of the eclipse. Some physical points on such O-C behavior are presented.
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