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Light curve solutions of the eccentric Kepler binaries KIC 11619964 and KIC 7118545 and mid-eclipse brightening of KIC 11619964

We carried out light curve solutions of two eclipsing detached binaries on eccentric orbits observed by Kepler. The orbits and fundamental parameters of KIC 11619964 and KIC 7118545 were determined with a high accuracy by modeling of their photometric data. We found that the temperatures of their components differ by around 2000 K while the radii of their secondaries are more than twice smaller than those of the primaries. We detected a strange "brightening" of KIC 11619964 in the narrow phase range (+-0.0005) around the center of the primary eclipse reaching to 0.018 mag in amplitude. This "mid-eclipse brightening" needs follow-up observations with good time resolution.

preprint2015arXivOpen access
Diana KjurkchievaDoroteya Vasileva
astro-ph.SR
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Diana KjurkchievaDoroteya Vasileva

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