Top row: Stokes I component of the 1.3 mm dust emission considering RAT grain alignment (left) in comparison with perfect alignment (right). White contours show the logarithmic column density, while the length and orientation of the pseudovectors represent the degree and angle of the linear dust polarization. The polarization vectors are rotated by 90° to match the actual magnetic field direction. The area of the bridge structure is enclosed by purple lines, while the natal structures that harbor the primary and secondary (D1) are shown in yellow and the natal structure of the tertiary (D2) is plotted in green. The borders follow the contour line of I = 4.24 mJy beam⁻¹. Bottom row: same as the top row, but the color-scale now shows the polarized fraction, P_frac.