Using all data available to us, we model the long term spot activity of 3 eclipsing RS CVn stars with periods of a few days. We use the Information Limit Optimization Technique of Budding and Zeilik (1987) to model the spot longitude, latitude, and radius for each epoch of available data. Contrary to the case for short (< 1 day) period RS CVns the spot longitudes seem to be distributed evenly rather than in active longitude belts. We find spots at both high and low latitudes but have not yet been able to establish long term trends in the evolution of the spot latitude or radius. We are also unable to establish differential rotation. We compare our results to results from other modeling techniques. We acknowledge the support of the AAS-REU program, the SIMBAD database, and the IAU Comm. #27 archives.
American Astronomical Society Meeting Abstracts #184
- Pub Date:
- May 1994