The Effect of Scattering on Pulsar Polarization Angle

Details The Effect of Scattering on Pulsar Polarization Angle The Effect of Scattering on Pulsar Polarization Angle

2003-08-06

arxiv.org/abs/astro-ph/0308095v1

Astron.Astrophys.410:253-256,2003

Astronomy and Astrophysics

Astrophysics

4 pages. Accepted by A&A

Scientific paper

10.1051/0004-6361:20031190

The low-frequency profiles of some pulsars manifest temporal broadening due to scattering, usually accompanied by flat polarization position angle (PA) curves. Assuming that the scattering works on the 4 Stokes parameters in the same way, we have simulated the effect of scattering on polarization profiles and find that the scattering can indeed flatten the PA curves. Since the higher-frequency profiles suffer less from scattering, they are convolved with scattering models to fit the observed low-frequency profiles. The calculated flat PA curves exactly reproduce the corresponding observations.

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