Channels maps of the HCN J=4-3 (top) and CS J=7-6 (bottom) transitions. The resolving beam is displayed in the lower left and the white star in the centre gives the approximate location of the host star. The white contours indicate the 3σ and 5σ RMS levels, while the black contours show the 10σ and 15σ RMS levels. The location of the continuum emission is in each map indicated by the white dashed contours.