arXiv:0902.2320·v1·Cosmology and Nongalactic Astrophysics
Active Galactic Nuclei Shed Light on Axion-like-Particles
Clare Burrage🇩🇪 · Anne-Christine Davis🇬🇧 · Douglas J. Shaw🇬🇧
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.
Comments: 4 pages, 3 figures