Position-velocity diagrams of the observed emission in J = (1−0) [CI] (top panels) and J = 4−3 ¹²CO (bottom panels). Panels on the left show the velocity distribution along the CND major axis, panels on the right the velocity distribution along a line perpendicular to this, corresponding to the position angle of the radio/X-ray jet. The velocity scale is V_LSR. Emission from the CND is at X = ± 10′′ and V_LSR = 550 ± 200 km s^-1, emission from the ETD extends over the full X-range but is limited to V_LSR = 550 ± 50 km s^-1. The contours in the J = 4−3 ¹²CO map at lower left are at multiples of 30 mK in T_mb, and at multiples of 40 mK in all other panels. The relatively low brightness at the center of all panels is due to the strong line absorption against the nuclear continuum. When this is taken into account, all diagrams show a central peak at X,Y = 0, V_LSR = 550 km s^-1 instead.