English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Broadband radio waves emitted from pulsars are distorted and delayed as theypropagate toward the Earth due to interactions with the free electrons thatcompose the interstellar medium, with lower radio frequencies being moreimpacted than higher frequencies. Multipath propagation in the interstellarmedium results in both later times of arrival for the lower frequencies andcauses the observed pulse to arrive with a broadened tail described via thepulse broadening function. We employ the CLEAN deconvolution technique torecover both the intrinsic pulse shape and pulse broadening function. This workexpands upon previous descriptions of CLEAN deconvolution used in pulsebroadening analyses by parameterizing the efficacy on simulated data anddeveloping a suite of tests to establish which of a set of figures of meritlead to an automatic and consistent determination of the scattering timescaleand its uncertainty. We compare our algorithm to simulations performed oncyclic spectroscopy estimates of the scattering timescale. We test our improvedalgorithm on the highly scattered millisecond pulsar J1903+0327, showing thescattering timescale to change over years, consistent with estimates of therefractive timescale of the pulsar.

Redeveloping a CLEAN Deconvolution Algorithm for Scatter-Broadened Radio Pulsar Signals