Normalized distribution functions for protostellar (left) and prestellar (right) cores of the residual stacked Stokes-I (blue) and -V (purple) maps averaged within 5000 circles of equal area as the central black circle in Figs. 3 and 5. The measured values at the center are shown with diagonal black hatches depending on the choice of ℛ for defining the outlier cores. From dark to light colours, shadows correspond to 1-, 2-, and 3-σ levels. The 84 th percentiles are 8 μJy beam⁻¹ and 5 μJy beam⁻¹ for protostellar and prestellar cores, respectively. The NDF are shown with both histograms and kernel density estimates.