Left: SCUBA 850 μm maps of B335 with polarization vectors superimposed. The length of the vectors is proportional to the degree of polarization and the direction gives the position angle. The data are binned over 9′′. Only vectors for which the 850 μm flux exceeds 5 times the standard deviation and P_l/σ(P_l) > 3 are plotted. The contour lines mark 20%, 40%, 60%, and 80% of the maximum intensity. Right: scatter diagrams showing the distribution of P_l vs. intensity I across the Bok globule B335. Only data points in which the 850 μm flux exceeds 5 times the standard deviation and P_l/σ(P_l) > 3 have been considered. (Wolf et al. 2003; DOI:10.1086/375622;c ◯AAS. Reproduced with permission.)