Discovery and Follow-up of a Quasiperiodically Nulling and Subpulse Drifting Pulsar with the Murchison Widefield Array
Garvit Grover,
N. D. Ramesh Bhat,
Samuel J. McSweeney
et al.
Abstract:The phenomenon of pulsar nulling, where pulsars temporarily and stochastically cease their radio emission, is thought to be indicative of a “dying” pulsar, where radio emission ceases entirely. Here we report the discovery of a long-period pulsar, PSR J0452−3418, from the ongoing Southern-sky MWA Rapid Two-meter pulsar survey. The pulsar has a rotation period of ∼1.67 s and a dispersion measure of 19.8 pc cm−3, and it exhibits both quasiperiodic nulling and subpulse drifting. Periodic nulling is uncommon, repo… Show more
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