Poster Abstracts

Name/Affiliation:  Steven Saar (SAO)

Title:  A First Look at Differential Rotation in Kepler Open Clusters NGC 6811 (1 Gyr) and NGC 6819 (2.5 Gyr) 

Open clusters are ideal targets for controlled studies of stellar properties, since members are coeval and have the same abundances. We present the first results of measurements of surface differential rotation (SDR) in two clusters of different ages in the Kepler field. We compare results for single stars with known binaries, and how differential rotation varies with mass and rotation. All of these are found to have an effect on the average SDR rate.