Perseus — YSO peculiar motions over the Planck 353 GHz magnetic-field drapery

Real Planck 353 GHz Stokes I (full footprint) and a true line-integral-convolution of the per-pixel field, with the Herschel HGBS column-density inset. Comets show bulk-subtracted peculiar motions for the 116 pooled NGC 1333/IC 348 members, coloured by Δθ. Motion length exaggerated for visibility.