On the DM interpretation of the origin of non-thermal phenomena in galaxy clusters

Understand

(Abridged) We study the predictions of various annihilating Dark Matter (DM) models in order to interpret the origin of non-thermal phenomena in galaxy clusters.

• We consider three neutralino DM models with light (9 GeV), intermediate (60 GeV) and high (500 GeV) mass.
• The secondary particles created by neutralino annihilation produce a multi-frequency Spectral Energy Distribution (SED), as well as heating of the intracluster gas, that are tested against the observations available for the Coma cluster.
• The DM produced SEDs are normalized to the Coma radio halo spectrum.