Kinematics of the [C II] emission for CRISTAL-05. (a) Top and (b) bottom left panels: Velocity (moment-1) and dispersion (moment-2) with respect to the observed frequency of [C II] at redshift z = 5.54. The black contours correspond to the 3-, 6-, 9-, 12-σ levels of the [C II] moment-0 map (non-JvM corrected). The dashed black line shows the slit in which we created the position-velocity diagram in the right panel, with the center of the slit as a black cross. The solid black line (black polygon) represents the slit used to generate the pv diagram (spectrum) of Figure 4. (c) Right panel: Position-velocity diagram (non-JvM corrected) along the major axis of CRISTAL-05 with a width of 0.245″. The black contours represent the 3, 5, and 7σ_pv.