S CrA N continuum-compensated pure Brγ line visibilities (full coloured symbols) computed for each of the six GRAVITY baselines. As a reference, the Brγ line profile normalised to the continuum is displayed in the top panel. The wavelength dispersed visibility amplitudes are overplotted for each PBL (empty grey symbols), along with a spectral binning of the visibility amplitudes (solid grey line). Velocities are with respect to the LSR.