Position-velocity diagrams of the ²⁹SiO(ν= 0,J = 8−7), ¹²CO(ν= 0,J = 3−2) and ¹³CO(ν= 0,J = 3−2) lines for the west part of the gaseous disk from which the east part of the PVD has been subtracted. The cyan ellipse is centered on the position of B, with a radial extension corresponding to the beam size and a velocity range of 12.2 ± 1.0 km s^-1. The yellow arrow indicates the position of the notch at 7 AU in the gaseous disk. The color scale is in mJy beam^-1.