Relation between $\sqrt{J_R}$ and angular momentum, L_z, for the stellar sample. Panel a: Low-Al stars. Panel b: High-Al stars. The low-α stars are shown as filled circles, the high-α stars as diamonds, and the thick-disc stars are displayed as crosses in both panels. The black box marks the Feuillet et al. (2022) selection scheme for the Gaia-Sausage-Enceladus. APOGEE DR17 data are plotted in the background.