Zoomed-in image of the 4.1–5.1 km s⁻¹ region of the channel maps of C¹⁸O J = 3−2 (top), HCN J = 4−3 (middle), and CS J = 7−6 transitions. The C¹⁸O channel maps show symmetric emission, while the channel maps of HCN and CS are both clearly asymmetric. The resolving beam is displayed in the lower left and the white star in the centre indicates the inferred 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.