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arxiv: 1812.09020 · v1 · pith:NLI74IYOnew · submitted 2018-12-21 · 🌌 astro-ph.SR

New light curve solution of V568 Peg and first determination of its fundamental parameters

classification 🌌 astro-ph.SR
keywords v568curvelightsolutioncomponentsfirstparametersallowed
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We present V, Rc photometric observations of the short-period W UMa star V568 Peg. They allowed us to improve its period. The light curve solution revealed that V568 Peg is an overcontact binary of A subtype with moderate fill-out factor. Its components are K stars which undergo partial eclipses. The mass ratio was estimated by q-search analysis. We established existing of big cool spot on the primary component with almost the same parameters during the last 4 years. Based on our light curve solution and the GAIA distance we calculated at the first time the masses, radii and luminosities of the components of V568 Peg.

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