Channel maps of the TiO₂ emission at 310.55 GHz, at a 2 km s^-1 velocity resolution. Black contours show the continuum measured with ALMA at 321 GHz (O+15; R+14). The stellar position is indicated with a white cross. Spatial scales are indicated in the top left panel and are the same for all panels. The colour scale starts at the 3σ level and is plotted as the square root of the flux for increased contrast.