Spatial distribution of the B-field-to-gravity force ratio, Σ_B, toward Hub-N. Contour levels, symbols, and lines are the same as in Fig. 7. We note that while in the hub there is a smooth transition of the values of Σ_B, in the boundaries of the hub and in the south of the map there are pixels with outliers. In these regions, there is a noisy intensity gradient (see Fig. 6) that is likely due to the absence of a dominant center of gravity at these positions.