Simulated line emission maps showing the effect of spatial resolution (0.1″, 0.25″, and 2″) on the measured emission peak positions of N₂H⁺ and HCO⁺. All models have an inclination of 45°. The first three columns show the fiducial model without disk. The other three columns show the fiducial model with disk. The second and third rows show corresponding slices extracted along the z = 0, with the number on the top left corner indicating the distance in AU of the peak from the center (i.e., peak radius). These positions are shown with orange vertical lines.