tokens: AVM and CP acknowledge support from the Sonderforschungsbereich SFB 881 ‘The Milky Way System’ (subproject A2) of the German Research Foundation (DFG). We acknowledge the computational support from the THEO and HYDRA clusters of the Max-Planck-Institut für Astronomie at the Rechenzentrum in Garching. SAB thanks the C.I.F.S. (Consorzio Interuniversitario per la Fisica Spaziale) for its financial support.
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