Data for: "Probing Atomic Dark Matter with Stellar Streams in Milky Way-Mass Galaxies"

Public data from Mandacarú Guerra et al. (2026), "Probing Atomic Dark Matter with Stellar Streams in Milky Way-Mass Galaxies". The file 'ADMslow_CDM_substructure_public.hdf5' contains the main results for the substructures in both simulations presented in the paper. Data is broken down into two groups: - 'CDM': data from m12i simulation with CDM+baryons- 'ADM-slow': data from m12i simulation with ADM+CDM+baryons For each simulation, we have the following subgroups, corresponding to classes of substructure: - 'satellite': objects classified as intact satellites by the criteria in Section 2.3- 'stream': objects classified as stellar streams by the criteria in Section 2.3 + results for their progenitors at z=0 from Section 3- 'phase-mixed': objects classified as phase mixed by the criteria in Section 2.3 Among these substructures, the following properties (evaluated at z=0 unless stated otherwise) are presented as arrays:- 'Mstar', 'Mstar_tot', 'M200', 'Mpeak', 'rconv', 'adm_fraction', 'local_dispersions', 'valid_progenitor', 'Vmax', 'rmax', 'rvir', 'alpha', 'fbound_DM', 'fbound_CDM', 'fbound_ADM', 'stellar_rhalf_peak', 'clump_rhalf_peak', 'Rperi', 'compactness', 'tau_infall', 'tau_peak', 'tau_stream', '[Fe_H]', 'quiescence_fraction', 'fbound_star', 'Rapo' Details about all properties are provided in the README file. The catalog can be accessed with publicly available tools such as the h5py package.