E_r plotted against r⁻² for the proposed group. The coloured points represent the measured quantities and the associated uncertainties for each object. The grey solid line shows the fit that we get from the Lynden-Bell method by assuming that the objects under study share E and h. The dashed lines represent the mean fit obtained from the MCMC method, with the thin solid lines representing 100 random realisations of it. Top: fit using MW-only potential. Bottom: fit using the MW+LMC potential.