The mysterious diffuse UV radiation and Axion Quark Nugget dark matter model

Abstract

It has been recently argued [1-3] that there is a strong component of the diffuse far-ultraviolet (FUV) background which is hard to explain by conventional physics in terms of the dust-scattered starlight. We propose that this excess in FUV radiation might be result of the dark matter annihilation events within the so-called axion quark nugget (AQN) dark matter model, which was originally invented for completely different purpose to explain the observed similarity between the dark and the visible components in the Universe, i.e. ${\Omega }_{\mathrm{DM}}\sim {\Omega }_{\mathrm{visible}}$. We support this proposal by demonstrating that intensity and the spectral features of the AQN induced emissions are consistent with the corresponding characteristics of the observed excess of the FUV radiation. If the future studies confirm the puzzling characteristics observed in [1-3] it might unlock a much more deeper and fundamental problem of modern cosmology-- it may reveal the nature of the dark matter.

Final version to appear in Phys. Lett. B

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• Width of the 511 KeV Line from the Bulge of the Galaxy
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• Mysterious anomalies in Earth's atmosphere and strongly interacting Dark Matter
• The Glow of Axion Quark Nugget Dark Matter: (II) Galaxy Clusters
• Possibility of antiquark nuggets detection using meteor searching radars
• AstroSat/UVIT Study of the Diffuse Ultraviolet Radiation in the Dwarf Galaxy Holmberg II
• Neutron Stars as the Dark Matter detectors
• Ball Lightning as a profound manifestation of the Dark Matter physics