PU Virginis The New Light Curves of a Binary Star System PU Virginis
Keywords:
Binary system, PU Verginis, Ellipsoidal variable starAbstract
Background and Objectives : The study of the binary star system led to an understanding of the mechanism and behavior of the stars through the analysis of the multi-band light curve. We selected a binary star system PU Virginis, which was only recently discovered.
Methodology : The observational data were obtained at the Regional Observatory for the Public in Chachoengsao, under the auspices of the National Astronomical Research Institute of Thailand (Public Organization) with the CCD photometer via the 0.7-m reflecting telescope in B, V and R bands. Including data obtained from the Kepler space telescope. The all data were used to create the light curves. The light curves were analyzed using the Wilson-Devinney code to determine the physical parameters. Moreover, the light curves analyze by the Fourier equation.
Main Results : The results of the physical parameters obtained from the Wilson-Devinney code are as follows: the temperature of the secondary star is approximately 5,000 K, the inclination is less than 30 degrees, the mass ratio is about 0.68, and the secondary component is expected to have dark spots. While Fourier analysis suggests that it might be an ellipsoidal variable star.
Conclusions : The binary star system PU Virginis might be the ellipsoidal variable star.
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