Single pulses from PSR B1641-45

Details Single pulses from PSR B1641-45 Single pulses from PSR B1641-45

2003-11-19

arxiv.org/abs/astro-ph/0311441v1

Mon.Not.Roy.Astron.Soc. 348 (2004) 1229

Astronomy and Astrophysics

Astrophysics

8 pages, 10 figures, accepted by MNRAS

Scientific paper

10.1111/j.1365-2966.2004.07428.x

The integrated profile of PSR B1641-45 can be decomposed into four Gaussian components. The sum of these Gaussian components can be made to replicate the total intensity, linear and circular polarization of the integrated profile, and the discontinuity in the swing of the position angle. Surprisingly, the single pulses from PSR B1641-45 can also be decomposed into these same Gaussian components with only the amplitude of the components as a free parameter. The distributions of the fitted amplitudes are log-normal. Under the assumption that emission consists of 100% polarized orthogonal modes which are emitted simultaneously, I show that the polarization properties of the single pulses can also be replicated in a simple way. This lends support to models involving the superposition of orthogonal modes rather than disjoint emission of the modes.

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