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DD Mon and XY UMa: CCD Photometry and Modeling of Two Close Binary Systems with Solar-Type Components

Citation:

Gazeas K, Liakos A, Niarchos P. DD Mon and XY UMa: CCD Photometry and Modeling of Two Close Binary Systems with Solar-Type Components. In: Vol. 435. ; 2010. pp. 351.

Date Presented:

2010/12/1

Abstract:

We present our ground-based CCD observations of the close binary systems DD Mon and XY UMa in B, V, R and I bands. The light curves are analyzed using the Wilson-Devinney code (W-D) for the derivation of the geometric and photometric elements of the systems. We compare the methods of photometric and spectroscopic mass ratio determination in these binaries, as a function of all typical difficulties, which arise during the analysis of such systems (light curve asymmetries, third light etc). Finally, a new spot model is suggested for the eclipsing system XY UMa, which belongs to the RS CVn type of active binaries.

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