The asymmetric light curves of the GSC 2764 1417 (And), GSC 3355 0394 (Per) and GSC 2537 0520 (Psc)

Abstract

Abstract. Solar-type variability is enhanced in short period close binaries with increased dynamo driven activity. This activity is studied in our analysis of recent light curves taken of the newly discovered eclipsing binaries GSC 2764 1417 (And), GSC 3355 0394 (Per) and GSC 2537 0775 (CVn).Keywords. binaries: close, stars: activity, spots, mass loss, winds, outflows; techniques: photometric Observations and AnalysesOur recent CCD observations of these variables were taken with the Lowell 0.81-m though our association with NURO (the National Undergraduate Research Observatory) and the SARA (Southeastern Association for Research in Astronomy) 0.9-m telescope. Times of minima were calculated, period studies were carried out and orbital behaviors were determined and used to phase present light curves. B,V,R,I light curves were hand premodeled with Binary Maker 3.0 (Bradstreet 2002). Average parameters were used as initial input values for a simultaneous 4 color synthetic light curve calculation with the