Ideal ¹²C¹²O (3−2) velocity-channel map of a T Tauri disk model with an embedded Jupiter-mass planet. The flux density in Jy/as² is color coded for each individual channel. The inclination of the disk is 10° and the disk has a total mass of 2.67 × 10^-5 M_⊙. The gap is visible but does not appear as a symmetric ring like in the continuum case because the parts of the disk contributing in the individual channel maps change due to Doppler shift.