Abstract
We demonstrate that the scatter in the luminosity relations of astrophysical objects can be used to search for axionlike particles. This analysis is applied to observations of active galactic nuclei, where we find evidence highly suggestive of the existence of a very light axionlike particle.
- Received 17 February 2009
DOI:https://doi.org/10.1103/PhysRevLett.102.201101
©2009 American Physical Society