CCD Photometric Study of the Puzzling W UMa-type Binary TZ Boo
Abstract
The puzzling W-UMa type binary TZ Boo has been monitored at the University of Patras, Observatory from March to July 2010. Photometric solutions were determined through an analysis of the complete BVRI light curves with PHOEBE (Wilson-Devinney code) and published spectroscopic data. This low mass ratio binary turns out to be a deep overcontact system with f = 52.5% of A-subtype. A conservative spot model has been applied to fit the particular features of light curves. Based on our 7 new light minimum times and all others compiled from the literature over 70 years, we studied the orbital period from the O-C curve.
- Publication:
-
From Interacting Binaries to Exoplanets: Essential Modeling Tools
- Pub Date:
- April 2012
- DOI:
- 10.1017/S1743921311028237
- Bibcode:
- 2012IAUS..282..492C