Galaxy clusters in high definition: A dark matter search

Recent radio-frequency probes, with the ATCA and ASKAP telescopes, have proven themselves to be at forefront of placing indirect limits on properties dark matter. The latter being able substantially exceed constraining power Fermi-LAT data. However, these observations were based only dwarf galaxies, where magnetic field uncertainties are large. Here we reexamine case for galaxy clusters, often ignored due substantial diffuse radio backgrounds, by considering extrapolation known cluster surface brightness profiles down scales observable MeerKAT. Despite large baryonic find that clusters can competitive galaxies. Extrapolated Coma data rule out weakly interacting massive particles mass $<700\text{ }\text{ }\mathrm{GeV}$ annihilating via $b$-quarks. This is while having lesser surrounding diffusive environment. Such compelling results possible a clash between inner shape matter halo flat profile halos which most pronounced Navarro-Frenk-White-like Einasto profiles, presence some supporting evidence in literature.