| Issue |
A&A
Volume 410, Number 1, October IV 2003
|
|
|---|---|---|
| Page(s) | 253 - 256 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361:20031190 | |
| Published online | 17 November 2003 | |
Research Note
The effect of scattering on pulsar polarization angle
National Astronomical Observatories, Chinese Academy of Sciences, Jia-20 DaTun Road, Chaoyang District, Beijing 100012, PR China
Corresponding author: J. L. Han, hjl@bao.ac.cn
Received:
2
May
2003
Accepted:
29
July
2003
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.
Key words: pulsars: general
© ESO, 2003
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