Axions and polarisation of quasars
A. Payez, J.R. Cudell, D. Hutsemekers
TL;DR
This paper explores how axion-photon mixing in magnetic fields could explain the large-scale alignment of quasar polarisation vectors observed in the sky.
Contribution
It proposes a mechanism involving axion-photon mixing to account for quasar polarisation alignments, linking particle physics with astrophysical observations.
Findings
Axion-photon mixing can produce polarisation effects similar to observed quasar alignments.
External magnetic fields influence quasar polarisation through axion interactions.
The proposed mechanism offers a potential explanation for large-scale polarisation coherence.
Abstract
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 large-scale coherent orientations of quasar polarisation vectors in visible light that have been observed in some regions of the sky.
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