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      OGLE-2019-BLG-0362Lb: A Super-Jovian-Mass Planet around A Low-Mass Star

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      https://www.riss.kr/link?id=A108247355

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      다국어 초록 (Multilingual Abstract)

      We present the analysis of a planetary microlensing event OGLE-2019-BLG-0362 with a short-duration anomaly (~0.4 days) near the peak of the light curve, which is caused by the resonant caustic. The event has a severe degeneracy with $\delcs = 0.9$ bet...

      We present the analysis of a planetary microlensing event OGLE-2019-BLG-0362 with a short-duration anomaly (~0.4 days) near the peak of the light curve, which is caused by the resonant caustic. The event has a severe degeneracy with $\delcs = 0.9$ between the close and the wide binary lens models both with planet-host mass ratio $q \simeq 0.007$. We measure the angular Einstein radius but not the microlens parallax, and thus we perform a Bayesian analysis to estimate the physical parameters of the lens. We find that the OGLE-2019-BLG-0362L system is a super-Jovian-mass planet $M_{\rm p}=3.26^{+0.83}_{-0.58}~M_{\rm J}$ orbiting an M dwarf $M_{\rm h}=0.42^{+0.34}_{-0.23}~M_{\odot}$ at a distance $D_{\rm L} =5.83^{+1.04}_{-1.55}$ kpc. The projected star-planet separation is $a_{\perp} = 2.18^{+0.58}_{-0.72}~{\rm AU}$, which indicates that the planet lies beyond the snow line of the host star.

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      참고문헌 (Reference)

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