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astro-ph2008★ 5 cited
Large-Scale Alignments of Quasar Polarization Vectors: Evidence at Cosmological Scales for Very Light Pseudoscalar Particles Mixing with Photons?
D. Hutsemekers, A. Payez, R. Cabanac +4
Based on a sample of 355 quasars with significant optical polarization, we found that quasar polarization vectors are not randomly oriented over the sky as naturally expected. The…
astro-ph2008★ 22 cited
Axions and polarisation of quasars
A. Payez, J. R. Cudell, D. Hutsemekers
We present results showing that, thanks to axion-photon mixing in external magnetic fields, it is actually possible to produce an effect similar to the one needed to explain the la…