Position-velocity diagrams of the ¹³CO(3–2) emission in the cavity along the major (upper panel) and minor axis (lower panel). The black curves show the expected Keplerian velocity around a single star of 1.36 M_⊙. Contour levels are spaced by 10 mJy beam⁻¹; the zero contour is omitted. The white lines indicate the position of the inner edge of the dust ring (180 au) and the black lines show the position of the inner radius of the gas disk (169 au). The data were rotated by 7° to align with the disk axis, so that cardinal directions are approximate.