Cumulative distribution function of the difference in position angle between the local magnetic field and the NESTs semi-major axis (dashed-dotted blue line). The long dashed light blue histogram corresponds to the subset of NESTs whose semi-major axis is more than twice as large as their semi-minor axis and, thus, whose position angle is best defined. The green solid and red hatched histograms are the corresponding distribution for the symmetry axis of YSO disks and dense cores, respectively (Ménard & Duchêne 2004). The black dotted line is the function expected for a randomly oriented sample.