A Photometric Study of the Eclipsing Binary QT Ursae Majoris
Volume 45 number 2 (2017)
- Edward J. Michaels
- Stephen F. Austin State University, Department of Physics, Engineering and Astronomy, P.O. Box 13044, Nacogdoches, TX 75962; emichaels@sfasu.edu
Abstract
Presented are the first multiband light curves of the eclipsing binary QT Ursae Majoris. The light curves were analyzed using the Wilson-Devinney program to find the best-fit stellar model. Asymmetries in the light curves required spots to be included in the model. The solution results give a Roche Lobe fill-out of 13%, which is consistent with a W-type contact binary. New linear and quadratic ephemerides were computed using 31 times of minima, including 8 new ones from this study.