Observed mean outer dust temperatures of the globules vs. column density of the outer halo (see Table 5). The conversion to A_V was done with the mean A_V-to-N_H ratio of (1.5 ± 0.5) × 10^-21 derived from the comparison of NIR extinction maps (not used further in this paper) of 9 globules and the N_H maps derived in this paper and thus remains somewhat uncertain. Errorbars on BHR12 mark uncertainties of ±0.5 K for T_d and 20% for N_H (out), repectively. Plotted as grayscale and contours is the dust temperature at the outer radius (30 000 AU) of a model cloud, derived with the radiative transfer modeling descibed in Sect. 5.7, versus shielding of the cloud against the ISRF by a halo and as function of the relative strengths of the ISRF.