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Zang, Y.-H. Ryu, Y. K. Jung, Y. Lee, Y. Shvartzvald","submitted_at":"2020-03-06T01:01:39Z","abstract_excerpt":"We report the analysis of the microlensing event OGLE-2018-BLG-0677. A small feature in the light curve of the event leads to the discovery that the lens is a star-planet system. Although there are two degenerate solutions that could not be distinguished for this event, both lead to a similar planet-host mass ratio. We perform a Bayesian analysis based on a Galactic model to obtain the properties of the system and find that the planet corresponds to a super-Earth/sub-Neptune with a mass $M_{\\mathrm{planet}} = {3.96}^{+5.88}_{-2.66}\\mathrm{M_\\oplus}$. 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