Distribution of the HS in IoM-space defined as E, L_z, and L_⊥ (left), velocity (middle), and configuration space (right) separated in the hiL clump (red, 191 stars in total) and loL clump (blue, 128 stars in total) based on the stars’ position in (L_z, L_⊥) space, see top-left panel. The subclump, a kinematically cold, coherent group of stars, is indicated in black. The stars in the background of the energy and angular momentum distributions correspond to the selection of local halo stars (d < 2.5 kpc) by Dodd et al. (2023). The energy values have been computed in the fiducial potential (see Appendix A). Histograms on the top and right of each plot show the one-dimensional distributions. The error bars on the data points denote the uncertainties. The hiL clump has on average lower L_z, higher L_⊥, higher energy, larger |v_z| and lower v_y.