%0 Electronic Article
%A Burrage, Clare
%T Searching for axion-like-particles in the sky.
%N DESY-09-080
%M PUBDB-2022-05210
%M DESY-09-080
%D 2009
%Z © Published by Elsevier B.V.
%X 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.
%K axion: search for (INSPIRE)
%K field theory: scalar (INSPIRE)
%K photon axion: coupling (INSPIRE)
%K magnetic field (INSPIRE)
%K luminosity (INSPIRE)
%K AGN (INSPIRE)
%K optics (INSPIRE)
%K astrophysics (INSPIRE)
%K numerical calculations (INSPIRE)
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.3204/PHPPUBDB-11756
%U https://bib-pubdb1.desy.de/record/483243