The giant pulse population of PSR B0355+54

TL;DR

This study reports the detection and analysis of giant radio pulses from pulsar PSR B0355+54, revealing their phase distribution, polarization, and temporal characteristics based on nearly 8 hours of observational data.

Contribution

First detection and detailed characterization of giant pulses from PSR B0355+54, including their phase regions, polarization, and temporal properties.

Findings

432 bright pulses identified over 7.97 hours

Giant pulses occur in two phase regions within the emission window

Giant pulses are narrower and significantly brighter than the average profile

Abstract

Giant pulses are rare bright radio bursts that occur in restricted ranges of pulsar rotational phase. Here we report giant pulses from PSR B0355+54, a pulsar with spin period ~0.156 s. Using 7.97 hours of observations centred at 1.46 GHz, with 128 MHz bandwidth in each circular polarizations, we identify 432 pulse periods containing bright pulses. The giant pulses recur in two compact longitude regions inside the radio emission window. They are narrow compared with the mean profile, with median W50=290.3 us, and reach relative peak flux density ratios up to 149.7. The early longitude group has a timing scatter of 139.7 us, or 8.9*10^{-4} of a rotation. The first longitude group favours right, while the second favours left circular polarization.