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Phys. Rev. Lett. 102, 201101 (2009) [4 pages]

Active Galactic Nuclei Shed Light on Axionlike Particles

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Clare Burrage1, Anne-Christine Davis2, and Douglas J. Shaw3
1Theory Group, Deutsches Elektronen-Synchrotron DESY, D-22603 Hamburg, Germany
2Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, Cambridge CB3 0WA, United Kingdom
3Queen Mary University of London, Astronomy Unit, School of Mathematical Sciences, Mile End Road, London E1 4NS, United Kingdom

Received 17 February 2009; revised 25 March 2009; published 21 May 2009

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.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.201101
DOI:
10.1103/PhysRevLett.102.201101
PACS:
98.54.Cm, 14.80.Mz