A phenomenological model for measuring generalised Faraday rotation
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Generalised Faraday rotation can induce frequency-dependent conversion between the linear and circular polarisation spectra of compact radio sources such as pulsars, fast radio bursts and active galactic nuclei. I devise a simple phenomenological model that can be used to measure the effects of generalised Faraday rotation on the linearly and circularly polarised spectra of these sources. The model is theory-agnostic, with an arbitrary wavelength dependence, and hence can accommodate for a variety of potential generalised Faraday rotation inducing media. It can also be combined with additional observables to infer the physical properties of the intervening medium.
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Constraining the near-source relativistic wind medium using Fast Radio Burst circular polarization data
Faraday conversion in magnetar winds explains the range of observed FRB circular polarization and yields constraints on near-source wind parameters from Stokes data.
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