Probability map obtained for the SPHERE-IRDIS 51 Eridani data set, with the RSM using a Gaussian distribution along the S/N map generated with the cube of residuals obtained with annular PCA, LLSG, and NMF. The annular PCA and the NMF use 20 components, and the LLSG has a rank of 7. The colour scale indicates the probability for the RSM map and the S/N for the three S/N maps (Mawet et al. 2014). The maps are centred on the star 51 Eridani while 51 Eridani b is identified by the white circle in the lower left quadrant.