A dark matter annihilation model fits the radio spectrum of the cluster RX J1720.1+2638 slightly better than a cosmic-ray power law, but the evidence is weak.
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Identifying dark matter signals by the radio continuum spectral data of the cool-core cluster RX J1720.1+2638
A dark matter annihilation model fits the radio spectrum of the cluster RX J1720.1+2638 slightly better than a cosmic-ray power law, but the evidence is weak.