New polarimetric constraints on axion-like particles
Cosmology and Nongalactic Astrophysics
2015-02-09 v1
Abstract
We show that the parameter space of axion-like particles can be severly constrained using high-precision measurements of quasar polarisations. Robust limits are derived from the measured bounds on optical circular polarisation and from the distribution of linear polarisations of quasars. As an outlook, this technique can be improved by the observation of objects located behind clusters of galaxies, using upcoming space-borne X-ray polarimeters.
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Cite
@article{arxiv.1204.6187,
title = {New polarimetric constraints on axion-like particles},
author = {A. Payez and J. R. Cudell and D. Hutsemékers},
journal= {arXiv preprint arXiv:1204.6187},
year = {2015}
}
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