Observed (black) and modelled (red) CS line profiles for IRAS 15194-5115. The transition quantum numbers, telescope used for the observation, and the corresponding beam size in arcseconds are listed at the top right corner of each panel. The line fluxes are in units of Jansky for the ALMA spectra, whereas they are given in the main-beam temperature (T_MB [K]) scale for all SD spectra shown.