Depolarization and position angle jumps due to relative longitude shift of pulsar beams.

  • Xu R
  • Qiao G
  • Han J
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Abstract

Pulsar radio emission is generally found to be linearly
polarized over all longitudes of profiles, some times as high as up to
100%. The position angle sweep is in an `S' shape, which can be well
understood within the rotating vector model (Radhakrishnan & Cooke,
1969ApL.....3..225R). However, depolarization and position angle
jumping are often found in the integrated profiles of some pulsars. In
this paper, we investigate the effect on polarization behaviour due
to relative phase shift between pulsar beam components caused by
retardation effect, considering that the core and conal emission
components are radiated from different heights. We conclude that the phase
shift of beam centers of the different components could cause the
depolarization and position angle jump(s) in integrated profiles.

Author-supplied keywords

  • PULSARS: GENERAL; POLARIZATION

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  • ISSN: 00046361
  • SCOPUS: 2-s2.0-0039758769
  • PUI: 127547824
  • SGR: 0039758769

Authors

  • R X Xu

  • G J Qiao

  • J L Han

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