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K. Szyma\\'nski, M. Kubiak, P. Pietrukowicz, R. Poleski, R. W. Pogge, S. Koz{\\l}owski, Subo Dong, T.-G. Tan, T. Natusch, V. Batista, Y.-K. Jung","submitted_at":"2012-10-16T06:47:07Z","abstract_excerpt":"We report the discovery of a planetary system from observation of the high-magnification microlensing event OGLE-2012-BLG-0026. The lensing light curve exhibits a complex central perturbation with multiple features. We find that the perturbation was produced by two planets located near the Einstein ring of the planet host star. We identify 4 possible solutions resulting from the well-known close/wide degeneracy. By measuring both the lens parallax and the Einstein radius, we estimate the physical parameters of the planetary system. 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