The complex polarization angles of radio pulsars: orthogonal jumps and interstellar scattering

Details The complex polarization angles of radio pulsars: orthogonal jumps and interstellar scattering The complex polarization angles of radio pulsars: orthogonal jumps and interstellar scattering

2009-01-13

arxiv.org/abs/0901.1826v1

Monthly Notices of the Royal Astronomical Society: Letters 2009 vol. 392 pp. L60

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

5 pages

Scientific paper

10.1111/j.1745-3933.2008.00585.x

Despite some success in explaining the observed polarisation angle swing of radio pulsars within the geometric rotating vector model, many deviations from the expected S-like swing are observed. In this paper we provide a simple and credible explanation of these variations based on a combination of the rotating vector model, intrinsic orthogonally polarized propagation modes within the pulsar magnetosphere and the effects of interstellar scattering. We use simulations to explore the range of phenomena that may arise from this combination, and briefly discuss the possibilities of determining the parameters of scattering in an effort to understand the intrinsic pulsar polarization.

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