Equivalent to Figs. 6 and 7 but using a scaled version of the r-band surface band profile of Nube as mass surface density. This is equivalent to assuming a constant mass-to-light ratio throughout the galaxy. Note that the central drop in mass has gone away (cf. Fig. 1 with the data points in figures a). The fits assuming a Schuster-Plummer potential are shown in the top panels whereas those assuming a NFW potential are in the bottom panels. This other alternative calibration of the mass profile does not modify the conclusions based on the original calibration. The color code is the same in the two panels and also the same of the code used in the figures of the main text. For further details, see the caption of Fig. 6. Note that the EIM technique is insensitive to a global scaling of the mass profile, and this arbitrary factor has been chosen here so that the level of Σ(R) is similar to the original one in Fig. 1.