Deep Analyses of Nulling in Arecibo Pulsars Reveal Further Periodic Behavior

TL;DR

This study uses sensitive Arecibo data to analyze nulling behavior in pulsars, revealing periodic nulling similar to that observed in pulsar B1133+16, advancing understanding of pulsar emission variability.

Contribution

The paper provides the first detailed analysis of nulling in Arecibo pulsars, demonstrating the presence of periodic nulling in multiple conal pulsars, which was previously observed only in one pulsar.

Findings

Detection of periodic nulling in several conal pulsars

Nulling behavior similar to pulsar B1133+16

Enhanced understanding of pulsar emission mechanisms

Abstract

Sensitive Arecibo observations provide an unprecedented ability to detect nulls for an accurate pulse-modulation quelling (PMQ) analysis. We demonstrate that a number of conal pulsars show "periodic nulling" similar to the phenomenon found earlier in pulsar B1133+16.