Identification of the GES in the galactic bulge. Left column: MDF with GMM decomposition for the non-confined stars with apocentre larger than 8 kpc. Similar to the spheroidal bulge, these stars exhibit no significant rotation about the z-axis in the inertial frame (i.e. −0.4 < L_zi < 0.4). For each GMM component, the respective mean and weight are shown. Right column: same as the left, but for stars with apocentre larger than 15 kpc. Bottom: [α/Fe] vs [Fe/H] for the respective non-confined stars (black dots). The contours (KDE) highlight the main density features. In the background, the abundances for the bulge sample are shown.