The Discovery of Nulling and Mode Switching Pulsars with CHIME/Pulsar

Abstract

The Pulsar backend of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) has monitored hundreds of known pulsars in the northern sky since Fall 2018, providing a rich data set for the study of temporal variations in pulsar emission. Using a matched filtering technique, we report, for the first time, nulling behaviour in five pulsars as well as mode switching in nine pulsars. Only one of the pulsars is observed to show both nulling and moding signals. These new nulling and mode switching pulsars appear to come from a population with relatively long spin periods, in agreement with previous findings in the literature.

arXiv comment11 pages, 7 figures, 2 tables, accepted by ApJ

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Cited by in corpus (7)

• The CHIME Pulsar Project: System Overview
• The MPIfR-MeerKAT Galactic Plane survey I -- System setup and early results
• First discovery of new pulsars and RRATs with CHIME/FRB
• Study of 72 pulsars discovered in the PALFA survey: Timing analysis, glitch activity, emission variability, and a pulsar in an eccentric binary
• Pushchino multibeam pulsar search -- II. Long-term variability of RRATs
• Discovery and follow-up of a quasiperiodically nulling and sub-pulse drifting pulsar with the Murchison Widefield Array
• Constraining the selection corrected luminosity function and total pulse count for radio transients