Sample kinematics. (a) Velocity. (b) Velocity dispersion. (c) V_shear/σ. (d) ΔV and Δσ between H_ii and DIG. (e) ΔT_e between H II and DIG, assuming Δσ is solely due to the thermal component. The pink shaded region is the ΔT_e range found in the literature. Panels (b) and (c) have the same legend as in (a). All panels share the galactocentric distance in arcsec as x-axis. The twin axis shows the corresponding field labels.