Velocity dispersions of the narrow component (left) and the broad component (right). The probability distribution function of the velocity dispersion of the respective component is shown in the inset in the top right corner of each figure. The vertical red lines in the insets show the median dispersion of each component. The turbulence in the narrow component is consistently subsonic throughout, whereas the broad component is always supersonic (the velocity dispersion for sonic turbulence at these temperatures is ≈0.2km s⁻¹). The solid white contour shows the boundary of the coherent core from single-component fits. The beam and scale bar are shown in the bottom left and bottom right corners, respectively.