Search for Dispersed Pulses at Declinations from +56o to +87o

TL;DR

This survey at 111 MHz identified 75 pulse sources in the northern sky, including known pulsars, potential giant pulse emitters, and a new RRAT, expanding understanding of transient radio sources.

Contribution

The paper reports the discovery of a new RRAT and suggests some pulsars may emit giant pulses, based on narrow pulse profiles and flux ratios.

Findings

Detected 75 pulse sources, mostly known pulsars.

Identified four pulsars with potential giant pulses.

Discovered a new RRAT J0812+8626.

Abstract

The survey of northern hemisphere were made at a frequency of 111 MHz. The total accumulation time at each point of the sky was at least one hour. 75 sources of pulse emission were detected. More then 80% of these sources are known pulsars observed in the side lobes of the antenna. From one to several hundreds pulses were detected in twelve known pulsars. For four pulsars (J0157+6212, J1910+5655, J2337+6151, J2354+6155) the narrowness of the strongest pulses and the ratio of peak flux densities in the strongest pulse and in the average profile indicate that they can be pulsars with giant pulses. One new rotating radio transient (RRAT) J0812+8626 with a dispersion measure DM=40.25 pc/cm3 was detected.