Searching for axion-like-particles in the sky
Copyright policy )Searching for axion-like-particles in the sky
If dark energy couples to the fields of the standard model we can hope to detect or constrain it through non-gravitational effects. If the dark energy field couples to photons it behaves as an Axion-Like-Particle (ALP). ALPs mix with photons in the presence of magnetic fields and hence affect astronomical observations. We show that empirically established luminosity relations can be used as a new test for ALPs and that when applied to observations of active galactic nuclei this is highly suggestive of the existence of a very light ALP.
doi:10.3204/PHPPUBDB-11756
astrophysics, axion: search for, magnetic field, luminosity, AGN, info:eu-repo/classification/ddc/530, numerical calculations, 530, optics, field theory: scalar, photon axion: coupling
astrophysics, axion: search for, magnetic field, luminosity, AGN, info:eu-repo/classification/ddc/530, numerical calculations, 530, optics, field theory: scalar, photon axion: coupling
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