Long-term study of the starspot activity on the eclipsing short-period RS Canum Venaticorum binary UV Piscium

Abstract

We present optical photometry of the short-period eclipsing RS CVn system, UV Piscium for the years 1966-1984. For each light curve, we model the distortion waves in order to study the behaviour of starspots in this system. After removing the spot effects from the light curves, we model the cleaned data to obtain system parameters. We also note changes in the luminosity of the primary star that are not explained by the spot variation.