Orientation of Field?
© Charles ChandlerI "think" that this is saying that the magnetic field is parallel to the filaments.1These data indicate that B⊥ is perpendicular to the filament along most of its length, diverging only in the most southern regions by between 30° and 50°.If B is perpendicular to the filaments, then it's parallel, right?
References
1. Matthews, B. C.; Wilson, C. D. (2000): Magnetic Fields in Star-forming Molecular Clouds. I. The First Polarimetry of OMC-3 in Orion A. The Astrophysical Journal, 531: 868-872 ⇧