Abstract
Abstract We present the analyses of two microlensing events, OGLE-2018-BLG-0567 and OGLE-2018-BLG-0962. In both events, the short-lasting anomalies were densely and continuously covered by two high-cadence surveys. The light-curve modeling indicates that the anomalies are generated by source crossings over the planetary caustics induced by planetary companions to the hosts. The estimated planet/host separation (scaled to the angular Einstein radius θ E) and mass ratio are (s, q × 103) = (1.81 ± 0.02, 1.24 ± 0.07) and (s, q × 103) = (1.25 ± 0.03, 2.38 ± 0.08), respectively. From Bayesian analyses, we estimate the host and planet masses as ( M h , M p ) = ( 0.25 − 0.13 + 0.27 M ⊙ , 0.32 − 0.17 + 0.34 M J ) and ( M h , M p ) = ( 0.54 − 0.28 + 0.33 M ⊙ , 1.34 − 0.70 + 0.82 M J ) , respectively. These planetary systems are located at a distance of 7.06 − 1.15 + 0.93 kpc for OGLE-2018-BLG-0567 and 6.50 − 1.75 + 1.06 kpc for OGLE-2018-BLG-0962, suggesting that they are likely to be near the Galactic bulge. The two events prove the capability of current high-cadence surveys for finding planets through the planetary-caustic channel. We find that most published planetary-caustic planets are found in Hollywood events in which the source size strongly contributes to the anomaly cross-section relative to the size of the caustic.
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