KMT-2016-BLG-1836Lb: A Super-Jovian Planet from a High-cadence Microlensing Field

• Published in: The Astronomical journal 2020-03, Vol.159 (3), p.98
• Main Authors: Yang, Hongjing, Zhang, Xiangyu, Hwang, Kyu-Ha, Zang, Weicheng, Gould, Andrew, Wang, Tianshu, Mao, Shude, Albrow, Michael D., Chung, Sun-Ju, Han, Cheongho, Jung, Youn Kil, Ryu, Yoon-Hyun, Shin, In-Gu, Shvartzvald, Yossi, Yee, Jennifer C., Zhu, Wei, Penny, Matthew T., Fouqué, Pascal, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Chung-Uk, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W.
• Format: Article
• Language: English
• Subjects: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BRIGHTNESS; DISTANCE; Gravitational microlensing exoplanet detection; MASS; PLANETS; STARS; TELESCOPES
• ISSN: 0004-6256; 1538-3881; 1538-3881
• DOI: 10.3847/1538-3881/ab660e

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 ( ). The planet-host mass ratio q ∼ 0.004. A Bayesian analysis indicates that the planetary system is composed of a super-Jovian planet orbiting an M or K dwarf, , at a distance of kpc. The projected planet-host separation is 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 log q −3.0 for the 31 published KMTNet planets.