The first comprehensive photometric study of the overcontact binary TY Boo
Abstract
New precision BVRI light curves of the overcontact binary TY Boo have been obtained using the 35.5 cm Schmidt-Cassegrain telescope at the University of Patras, Observatory equipped with an SBIG ST-10XME CCD made during 2010 and 2011. The complete light curves are analyzed with the Wilson-Devinney code (PHOEBE) and new geometric and photometric elements are derived. A period investigation based on all available data spanning 85 years, shows that there exists a cyclic variation overlaying a secular period decrease. The presence of a third body is investigated but also spotted models as resulting from magnetic activity.
- Publication:
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10th Hellenic Astronomical Conference
- Pub Date:
- January 2012
- Bibcode:
- 2012hell.conf...25C