Arecibo 4.5/1.4/0.33-GHz Polarimetric Single-Pulse Emission Survey

TL;DR

This survey provides high-frequency polarimetric observations of bright pulsars, analyzing their polarization, profile evolution, and beaming characteristics, with most findings supporting the core/double-cone emission model.

Contribution

It offers the first comprehensive high-frequency polarimetric survey of bright pulsars, including new data and analysis of their emission properties and beam geometry.

Findings

Fractional linear polarization generally decreases with frequency.

Profile widths tend to decrease with frequency.

Most pulsars' properties align with the core/double-cone emission model.

Abstract

We report on an Arecibo 4.5-GHz polarimetric single-pulse survey of the brightest pulsars at high frequency within its sky. The high frequency profiles are accompanied by a collection of both previously published and unpublished high quality 1.4- and 0.33-GHz observations. Here our analyses and discussion primarily involve the average and statistical properties of the 46 pulsar's polarimetric pulse sequences, profile classification and frequency evolution, and polarimetric profiles and peak-occurrence histograms. In most cases both the fractional linear polarization and profile widths decrease with frequency as expected, but there are some exceptions. Similarly, we were able to review and/or extend the profile classifications for this population of pulsars and work out their beaming characteristics quantitatively showing that almost all show properties compatible with the core/double-cone emission beam model. The entirety of these observation's average profiles are accessible for download.