Fig. 9

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Lindblad diagrams (energy vs. LZ ): the halo stars of the GALAH survey are plotted as reference background, colour-coded by density; in each panel the colour-map emphasises the Gaia-Enceladus and Milky Way (Erebus and Splash) populations, respectively, using the separation in Giribaldi & Smiljanic (2023). Left panel: precision samples and the Gaia-ESO sample (represented with the same symbols as in Fig. 2). The boxes enclose the areas with the highest probability of containing Gaia-Enceladus and Sequoia stars according to Massari et al. (2019). The red circles indicate stars with Gaia-Enceladus-like dynamics in the current sample. Right panel: stars in and out of the solar neighbourhood (distinguished by different coloured symbols). The stars with Gaia-Enceladus-like orbits are highlighted.
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