Active Galactic Nuclei Shed Light on Axion-like-Particles

Abstract

We demonstrate that the scatter in the luminosity relations of astrophysical objects can be used to search for axion-like-particles (ALPs). This analysis is applied to observations of active galactic nuclei, where we find evidence strongly suggestive of the existence of a very light ALP.

4 pages, 3 figures

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• Symmetron Scalar Fields: Modified Gravity, Dark Matter or Both?
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• On the Evidence for Axion-like Particles from Active Galactic Nuclei
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• Improving Statistical Sensitivity of X-ray Searches for Axion-Like Particles
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• Chameleon Induced Atomic Afterglow
• Axion-like particles: possible hints and constraints from the high-energy Universe
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