Covariant Magnetoionic Theory I: Ray Propagation

Details Covariant Magnetoionic Theory I: Ray Propagation Covariant Magnetoionic Theory I: Ray Propagation

2003-02-11

arxiv.org/abs/astro-ph/0302190v1

Mon.Not.Roy.Astron.Soc. 342 (2003) 1280

Astronomy and Astrophysics

Astrophysics

Submitted to MNRAS

Scientific paper

10.1046/j.1365-8711.2003.06618.x

Accretion onto compact objects plays a central role in high energy astrophysics. In these environments, both general relativistic and plasma effects may have significant impacts upon the propagation of photons. We present a full general relativistic magnetoionic theory, capable of tracing rays in the geometric optics approximation through a magnetised plasma in the vicinity of a compact object. We consider both the cold and warm, ion and pair plasmas. When plasma effects become large the two plasma eignemodes follow different ray trajectories resulting in a large observable polarisation. This has implications for accreting systems ranging from pulsars and X-ray binaries to AGN.

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