Centroids of CO(1–0) emission in NGC 1614 (in [Δα, Δδ]-units) derived with a velocity resolution of 60 km s^-1, using a power law of the flux as weighting function with index n = 1/2, are displayed in the left panel . Emission centroids calculated for velocity channels that are equidistant from v_sys (i.e., with a common |v − v_sys|–offset) are connected to visualize the change of PA, defined for the redshifted component of the connected centroids and measured east from north, as a function of velocity (middle panel). We also plot the change in the average radius r, defined as half of the mutual distance from the connected centroids, as a function of velocity (right panel). Red color is used for velocity channels of the line wing and black color for the line core. The dotted black (red) line in the middle panel identifies the ±1σ range around the average PA of the disk as derived inside the line core (line wing): PA_core = 2 ± 5° (PA_wing = −68 ± 15°). The green marker in the left panel identifies the dynamical center. Error bars as a function of velocity channel are shown in the middle and right panels. Error bars in the left panel are for the line core.