Search for periodic emission of five gamma-ray pulsars at the frequency of 111 MHz

TL;DR

This study searched for periodic radio emissions from five gamma-ray pulsars at 111 MHz but found no signals, setting upper limits on their flux densities.

Contribution

First to perform a radio search for these gamma-ray pulsars at 111 MHz using summed spectra and periodograms, establishing flux density upper limits.

Findings

No pulsar signals detected at 111 MHz.

Upper flux density limits established for each pulsar.

Method demonstrated for future pulsar radio searches.

Abstract

The search for pulsar (periodic) emission of five gamma-ray pulsars was carried out using the summed power spectra and the summed periodograms. No harmonics corresponding to the known pulsar periods were found. The upper estimations of the integral flux density of the pulsars J0357+3205 (<0.5 mJy), J0554+3107 (<0.5 mJy), J1958+2846 (<0.5 mJy), J2021+4026 (<0.4 mJy), and J2055+2539 (<0.55 mJy) is obtained.