Abstract
The observing signals from pulsar are always influenced by the interstellar medium (ISM) scattering. In the lower frequency observation, the intensity profiles are broadened and the plane of polarization angle (PPA) curves are flattened by the scattering effect of the ISM. So before we analyze the scattered signal, we should take a proper approach to clear scattering effect from it. Observing data and simulation have shown that the Stokes phase portraits I–U, I–Q and Q–U are also distorted by the ISM scattering. In this paper, a simulation is held to demonstrate a scattering and a descattering of the Stokes phase portraits of a single pulse profile of a pulsar. As a realization of the simulation method, this paper has studied the descattering of Stokes phase portraits of lower frequency observation of PSR B1356−60, PSR B1831−03, PSR B1859+03, PSR B1946+35.
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Acknowledgements
This work was funded by the National Natural Science Foundation of China (NSFC) under No. 11273051 and the key program project of Joint Fund of Astronomy by NSFC and CAS under No. 11178001.
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Rusul, A., Esamdin, A., Zheng, XP. et al. The Stokes phase portraits of descattered pulse profiles of a few pulsars. Astrophys Space Sci 348, 155–162 (2013). https://doi.org/10.1007/s10509-013-1551-x
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DOI: https://doi.org/10.1007/s10509-013-1551-x