Comparison of magnetic field measured with VGT for ¹²CO (3–2) and Planck dust polarization. The comparison of magnetic fields measured with VGT for ¹²CO (3–2) and Planck dust polarization is shown in the left panel. The orientation of the magnetic field measured using VGT for ¹²CO (3–2) spectra and dust polarization from Planck is displayed by the red and white vectors, respectively. The integrated intensity of 12CO (3–2) spectral line from −31 to 155 km s⁻¹ is shown in the background. The right panel shows the spectral line of ¹²CO (3–2) across the full velocity channel, with the six different velocity components represented by different color lines.