Corner plot showing the results of atmosphere-ring retrieval on the transmission spectrum of K2-33b obtained by Thao et al. (2022). The colored regions in the 2D posteriors denote 1σ, 2σ, and 3σ intervals. The right top panel also shows the median transmission spectrum and its 1σ and 2σ uncertainties. The CPDR model succeeds in explaining a factor of 2 variation in the transit depth from optical to near-infrared wavelength. Prominent absorption features across the range from 8 to 30 μm are due to ring particle absorption.