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CCD Photometric Study of the Puzzling W UMa-type Binary TZ Boo

Published online by Cambridge University Press:  23 April 2012

P.-E. Christopoulou ,
A. Papageorgiou  and
I. Chrysopoulos
P.-E. Christopoulou
Affiliation:
Astrophysical Laboratory, Department of Physics, University of Patras, 26500, Patra, Greece
A. Papageorgiou
Affiliation:
Astrophysical Laboratory, Department of Physics, University of Patras, 26500, Patra, Greece
I. Chrysopoulos
Affiliation:
Astrophysical Laboratory, Department of Physics, University of Patras, 26500, Patra, Greece
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Abstract

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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.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 492 - 493
Copyright
Copyright © International Astronomical Union 2012

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