Document Type
Article
Publication Date
3-1-2020
Abstract
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 (Γ ∼ 4 hr-1). The planet-host mass ratio q ∼ 0.004. A Bayesian analysis indicates that the planetary system is composed of a super-Jovian Mplanet = 2.2-1.1+1.9MJ planet orbiting an M or K dwarf, Mhost = 0.49-0.25+0.38M&odot, at a distance of DL = 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 ≲ log q ≲ -3.0 for the 31 published KMTNet planets.
Publication Source (Journal or Book title)
Astronomical Journal
Recommended Citation
Yang, H., Zhang, X., Hwang, K., Zang, W., Gould, A., Wang, T., Mao, S., Albrow, M., Chung, S., Han, C., Jung, Y., Ryu, Y., Shin, I., Shvartzvald, Y., Yee, J., Zhu, W., Penny, M., Fouqué, P., Cha, S., Kim, D., Kim, H., Kim, S., Lee, C., Lee, D., Lee, Y., Park, B., & Pogge, R. (2020). KMT-2016-BLG-1836Lb: A Super-Jovian Planet from a High-cadence Microlensing Field. Astronomical Journal, 159 (3) https://doi.org/10.3847/1538-3881/ab660e