In the present paper we use a complete set of CCD observations to model the light curves of the new W UMa systems, GSC 4835-1716 and USNO-A2.0_1275-10813091. The light curve modeling is performed by means of the W-D code where Kurucz (1993) model atmospheres are implemented. We treated the asymmetry of the observed curves using a spotted model. Physical parameters of the accepted model revealed that primary components of the studied systems are massive and hotter than the secondary ones. The components of the system GSC 4835-1716 are found to be on or near the TAMS track while the components of the system USNO-A2.0_1275-10813091, lie between the ZAMS and TAMS evolution tracks.
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Published in Astrofizika, Vol. 63, No. 2, pp. 217-226 (May 2020).
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Elkhateeb, M.M. Orbital Solution of Some Contact Binaries. Astrophysics 63, 190–199 (2020). https://doi.org/10.1007/s10511-020-09625-4
- eclipsing binaries
- W UMa
- light curve analysis