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arxiv: 0902.2320 · v1 · submitted 2009-02-13 · 🌌 astro-ph.CO · gr-qc· hep-ph

Active Galactic Nuclei Shed Light on Axion-like-Particles

classification 🌌 astro-ph.CO gr-qchep-ph
keywords activeaxion-like-particlesgalacticlightnucleialpsanalysisapplied
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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.

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