干旱区生态环境知识资源中心

We report the discovery of a super-Jovian planet in the microlensing event KMT-2016-BLG-1836, which was found by the Korea Microlensing Telescope Network (KMTNet) high-cadence observations (Gamma similar to 4 hr(-1)). The planet-host mass ratio q similar to 0.004. A Bayesian analysis indicates that the planetary system is composed of a super-Jovian M-planet=2.2(-1.1)(+1.9) M-J planet orbiting an M or K dwarf, M-host = 0.49(-0.25)(+0.38) M-circle dot, at a distance of D-L = 7.1(-2.4)(+0.8) kpc. The projected planet-host separation is 3.5(-0.9)(+1.1) au, implying that the planet is located beyond the snow line of the host star. Future high-resolution images can potentially strongly constrain the lens brightness and thus the mass and distance of the planetary system. Without considering detailed detection efficiency, selection, or publication biases, we find a potential mass-ratio desert at -3.7 less than or similar to log q less than or similar to -3.0 for the 31 published KMTNet planets.