Integrated intensity maps of CO for different velocity regimes overlaid on Band 6 continuum in grayscale for Ser-emb 8 (N). The emission is integrated over the velocities listed in Table 2. The synthesized beams of the CO (red) and continuum (black) are showed in bottom-left corner of EHV plot with sizes 0.′′35 × 0.′′33 and 0.′′55 × 0.′′45 for continuum and CO, respectively. The contours are [3, 6, 9, 15, 20, 40, 60, 80, 100] times the rms value. The rms values for each velocity channel, which are blueshifted and redshifted in K km s⁻¹, are slow [18.3, 13.7], fast [3.1, 4.5], EHV [1.7, 1.4].