A Gap in the Densities of Small Planets Orbiting M Dwarfs: Rigorous Statistical Confirmation Using the Open-source Code RhoPop

J. G. Schulze, Ji Wang, J. A. Johnson +4

Using mass-radius-composition models, small planets ($\mathrm{R}\lesssim 2{\mathrm{R}}_{\oplus }$) are typically classified into three types: iron-rich, nominally Earth-like, and those…