Position-velocity diagrams of CH⁺ (top left), Na I D (top right), Hα (bottom left) and the [C I] line at 9850 Å (bottom right) in V854 Cen. Both CH⁺ and Na I D show a shape very similar to Ca II K (see main text); however, both Na I D components have a strong zero-velocity component. Note that the narrow emission line in the CH⁺ diagram at ~50 km s⁻¹ is likely due to Na II. Hα and [C I] shows a similar, although less pronounced, behaviour.