Emission line spectra for all detected emission lines, that is CO(3−2), CO(6−5), CS(4−3), HCO⁺(4−3), and HCN(4−3), at two locations in the nuclear region of the Circinus Galaxy: the nucleus itself (top panel, cyan cross in Figs. 2–4), and the ridge-like structure to the south-west of the nucleus (lower panel, tip of the cyan arrow in the top left panel of Fig. 2). For better visibility, the spectra for CO(6−5) and CS(4−3) were multiplied by factors of 4 and 0.2 respectively.