Magnetic field orientation at both wavelengths. Magnetic field segments (red lines) at 1.3 mm (left) and 3.1 mm (right) overlaid on the corresponding Stokes I maps (contours and greyscale). Segments are shown every five pixels. The white dots mark the position of four embedded continuum sources observed at 1.4 mm and 3.5 mm (Beltrán et al. 2021). The black rectangle (right) indicates the zoomed region shown in the inset. Contours are the same as in Fig. 1. The synthesized beam is shown in the lower left corner.