Analysis of the Light Curves of PV Cassiopeiae by Use of Automatized Fourier Techniques

Abstract

UBV Light Curves of the eclipsing binary system PV Cassiopeiae have been investigated using recently developed frequency-domain techniques. This analysis is based on Kopal's new theory for the study of the light variations, between minima as well as within eclipses, of eclipsing binaries whose components undistorted or distorted by axial rotation and mutual tidal action. A method for the distinguishing of the photometric proximity and eclipse effects directly from the observed data is also presented. In this method no 'rectification' is needed. The automated method has been tested successfully on the light curves of PV Cassiopeiae. Finally, a comparative discussion is given of Kopal's and Kitamura's methods of the light curves analysis. © 1981 D. Reidel Publishing Co.