Assessing the interior structure of the super-Earth exoplanet K2-18b

Abstract

K2-18 b is a super-earth exoplanet revolving around an M-dwarf star K2-18 in constellation Leo. Here we have analysed the internal structure of exoplanet K2-18 b for mass and radius measurements by Cloutier et.al 2017 and new combined measurements by Sarkis et. al. 2018. We used Zeng and Seager 2008 code to infer range of possible composition of this planet. We present posterior likelihood of core, mantle and water-ice mass fractions of this planet using Bayesian inference.