Predictions of the ¹²CO disk emission of a VSI-unstable disk for different velocity channels. From left to right, the columns correspond to predictions for disk inclinations i = 5, 20 and 35 degrees. Thechannel widths are 0.05 km s⁻¹. The images are convolved with a circular Gaussian beam of 50 mas, shown in the bottom-left corner of each panel. The disk emission shows a corrugated pattern. Only red-shifted channels are shown, as the structures are quasi axisymmetric, therefore, the symmetric blue-shifted channels show similar substructures.