Detailed emission profiles of the Hα line shown for each of the IFU pixels. The left panel shows the observed data; the right panel shows the corresponding calculated model emissions. To emphasise the value and direction of the velocity, we applied colour coding where red means gas moving away from the observer and blue indicates gas moving towards the observer, and the higher the velocity, the more intense the colour. Grey is for zero. We plotted the emission in the form of bar plots. The width of each bar is 10 km s⁻¹, and the height (intensity) has been normalised to the maximum value over the whole image. The horizontal size of each box extends to +75 km s⁻¹; the vertical size is from zero to unity.