Amplitudes of the Fourier components obtained from the Kinemetry analysis of the CO velocity map, as a function of distance from the nucleus. The solid red line represents the coefficient of the cosθ term (pure circular rotation in a disk) and the other solid lines show the additional components (associated to perturbations) in the Fourier decomposition, following the colors specified in the inset. Only odd Fourier components were used. The vertical lines delineate radii at which we have abrupt changes in the fraction of pixels at a given radius which have values in the velocity map. At radii smaller than the left vertical line, this fraction is 1. Between the two vertical lines the fraction drops linearly from 1 to 0.5, and beyond 4″ the fraction is relatively steady at ∼0.3. The horizontal dashed line delineates zero velocity.