Recovering the Pulse Profiles and Polarization Position Angles of Some Pulsars from Interstellar Scattering

TL;DR

This paper presents a method to recover original pulse profiles and polarization angles of pulsars distorted by interstellar scattering, demonstrated on five pulsars, improving the analysis of pulsar signals at lower frequencies.

Contribution

The paper introduces a new technique for recovering pulsar pulse profiles and PPA curves affected by interstellar scattering, enhancing pulsar signal analysis.

Findings

Successfully recovered original pulse profiles for five pulsars.

Demonstrated the effectiveness of the method through simulations.

Improved understanding of pulsar emission properties at lower frequencies.

Abstract

Interstellar scattering causes broadening and distortion to the mean pulse profiles and polarization position angle (PPA) curves, especially to the pulse profiles observed at lower frequency. This paper has implemented a method to recover the pulse profiles and the PPA curves of five pulsars which have obvious scattered pulse profiles at lower frequency. It reports a simulation to show the scattering and descattering of pulse profiles and PPA curves. As a practical application, lower-frequency profiles and PPA curves of PSR 1356-60, PSR 1831-03, PSR 1838+04, PSR 1859+03, PSR 1946+35 are obtained. It is found that the original pulse profiles and PPA curves can be recovered.