On the Question of the Behavior of O-C Residuals of the Active Algol-Like Binary RZ Cassiopeiae

Details On the Question of the Behavior of O-C Residuals of the Active Algol-Like Binary RZ Cassiopeiae On the Question of the Behavior of O-C Residuals of the Active Algol-Like Binary RZ Cassiopeiae

2005-11-08

arxiv.org/abs/astro-ph/0511213v1

J.Am.Assoc.Var.StarObs.34:46,2005

Astronomy and Astrophysics

Astrophysics

Accepted to JAAVSO vol. 34

Scientific paper

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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