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Fig. 4

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Histogram of orientations for the low-density striations identified with DisPerSE in the B211+L1495 field (displayed in blue). The position-angle distribution of available optical polarization (Heyer et al. 2008, Heiles 2000) and infrared vectors (Chapman et al. 2011) are also shown (green dashed histogram). Gaussian fits to these distributions are superimposed, indicating a peak position angle of 34° ± 13° for the striations and 26 ° ± 18° for the B-field polarization vectors. The B211 filament has a mean position angle of 118° ± 20° (black triangle and horizontal error bar) and is thus roughly perpendicular to both the low-density striations and the local direction of the magnetic field.

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