Soft X-ray Excess in the Coma Cluster from a Cosmic Axion Background

We show that the soft X-ray excess in the Coma cluster can be explained by a cosmic background of relativistic axions converting into photons in the cluster magnetic field. We provide a detailed self-contained review of the cluster soft X-ray excess, the proposed astrophysical explanations and the p...

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Bibliographic Details
Main Authors: Angus, S, Conlon, J, Marsh, M, Powell, A, Witkowski, LT
Format: Journal article
Language:English
Published: Institute of Physics Publishing 2013