Example spectra of three candidate member stars in our FLAMES dataset centred on the CaT lines. The low, mid and high S/N regimes are represented here. The normalised spectra are shown with solid blue lines while the fits derived from our pipeline for Voigt profiles are shown with solid red lines. Residuals in the Voigt cases are shown for each case below the spectra as dashed green lines. These stars have a heliocentric velocity of −133.2 ± 1.5 (the ‘metal-rich’ candidate in Figure 2), −111.3 ± 0.6 and −133.3 ± 0.2 km s⁻¹ from top to bottom.