Contemporaneous Imaging Comparisons of the Spotted Giant sigma Geminorum Using Interferometric, Spectroscopic, and Photometric Data

Rachael M. Roettenbacher, John D. Monnier, Heidi Korhonen, Robert O. Harmon, Fabien Baron, Thomas Hackman, Gregory W. Henry, Gail H. Schaefer, Klaus G. Strassmeier, Michael Weber, Theo A. ten Brummelaar