Spectra, radial and azimuthal proofiles of the lines detected in the IRS 48 disk. Top: spectra extracted from the Keplerian masks (colours) and a 15 ellipse centred on-source (grey) with ±1σ error bars. The grey line marks the source velocity (4.55 km s⁻¹). Middle: radial emission profiles averaged over a wedge from 100° to 260°. Grey profiles are the dust emission at the same resolution as the line data, and error bars on the line profiles are shaded regions. Bottom: azimuthal profiles extracted at a de-projected radius of 70 au for the SO₂ lines and 90 au for the SO lines. The grey lines show the dust azimuthal profile extracted at the same radius for each line.