Position-velocity (P-V) curves of the different components (labelled at the top) that probe the ionised gas in Mrk 1498. The curves were obtained considering a 0$\stackrel{″}{.}$8 width pseudo-slit aligned with the major rotation axis (i.e. 148°; Table 2). There is a small offset between the kinematic centre of the components (filled green circles), i.e. < 0$\stackrel{″}{.}$8. The radius was therefore calculated as the distance from the photometric centre (continuum peak). For comparison, the pink symbols indicate the P-V curves from Keel et al. (2012) with PA = 149°.