Comparison between the ALMA observation (top panels) and the synthetic images (bottom panels) of CIDA 1 ¹³CO (J = 3-2) channel maps. Color scales are the same in the top and bottom panels. Synthetic images are obtained from the simulation with a final planet mass of 2.0 M_Jup after an evolution time of 4 × 10⁴ yr. We fixed the systemic velocity at 6.25 km s⁻¹. The contour level traces the 15σ emission from the Band 7 continuum image. The velocity resolution is 1 km s⁻¹, and the central velocities of each channel are indicated on the top of each panel. The synthesized beam (0.104″ × 0.076″, FWHM) is shown in the lower-left corner of each panel.