petitRADTRANS best-fit spectrum of 51 Eri b for the 'nominal' retrieval run (shown in black) on our new SPHERE spectro-photometric data (teal circles and purple squares) along with the photometric points included in SAM17 and (Rajan et al. 2017; shown as squares). The photometric points describe the average flux in the respective filter, and the x-error bar represents the filter widths. The 34 randomly drawn samples from the posterior probability distribution are shown in grey in order to show the spread of model parameter combinations to fit the data. Residuals in multiples of 1 σ uncertainties of the data for the best-fit model are shown below.