Stellar M/L ratio, computed within the circularized effective radius (R_e), as a function of log(σ_e8) (left panel), log(R_e) (middle panel), and log(L_e) (right panel). Each plot also reports the Spearman’s rank correlation coefficient and its p-value. There is no evident trend in M_e^⋆/L_e with respect to log(σ_e8) or log(L_e). There seems to be a weak trend with respect to log(R_e) up to ∼5.5 kpc. The variations in M_e^⋆/L_e across this sample of galaxies could explain the remaining scatter in the stellar mass HP.