Moment 1 (line-of-sight velocity) map of ^3DBAROLO [C II] fit to J0121-[C II]-B. The data, model, and residual are shown in the left, middle, and right panels, respectively. The black cross marks the kinematic center. The black dashed line indicates the kinematic major axis. The green contours mark zero velocity, which has a Δv = 114 km s⁻¹ offset between the systemic redshift (Table 1).