Velocity profiles of selected species associated with the DLA system at z = 2.4636 towards J 1513+0352, tracing the ionised gas (C IV), neutral atomic gas (Fe II), and molecular gas (C I). Despite the apparent complexity, the C I profile is actually characterised by a single component (shown in blue) and other absorption seen in the panel arise from excited fine-structure levels (J = 1 and J = 2 in cyan and green, respectively; the total profile is in red). The blue line in the Fe II panel shows the contribution from the ν = 0 component.