A Study of Single Pulses in the Parkes Multibeam Pulsar Survey
Mitchell B. Mickaliger, Alex E. McEwen, Maura A. McLaughlin, Duncan R., Lorimer

TL;DR
This study reprocessed the Parkes Multibeam Pulsar Survey data to analyze single-pulse properties, revealing that most pulsars' pulse amplitudes are better modeled by a power-law divided by an exponential, and suggesting a common emission mechanism for pulsars and RRATs.
Contribution
It introduces a new analysis of single-pulse amplitude distributions using novel fitting functions and compares pulsar and RRAT pulse properties to explore their emission mechanisms.
Findings
Most pulsars' pulse amplitudes fit a power-law divided by an exponential.
A correlation exists between the single-pulse S/N ratio and pulsar spin period.
Pulsars and RRATs show similar pulse-energy distributions, indicating a possible common emission mechanism.
Abstract
We reprocessed the Parkes Multibeam Pulsar Survey, searching for single pulses out to a DM of 5000 pc cm with widths of up to one second. We recorded single pulses from 264 known pulsars and 14 Rotating Radio Transients. We produced amplitude distributions for each pulsar which we fit with log-normal distributions, power-law tails, and a power-law function divided by an exponential function, finding that some pulsars show a deviation from a log-normal distribution in the form of an excess of high-energy pulses. We found that a function consisting of a power-law divided by an exponential fit the distributions of most pulsars better than either log-normal or power-law functions. For pulsars that were detected in a periodicity search, we computed the ratio of their single-pulse signal-to-noise ratios to their signal-to-noise ratios from a Fourier transform and looked for…
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