Explanipedia

The Southern-sky MWA Rapid Two-metre (SMART) pulsar survey—III. A census of millisecond pulsars at 154 MHz Open

C. P. Lee, N. D. R. Bhat, Bradley W. Meyers, S. J. McSweeney, W. van Straten , et al. · 2025

Observations of millisecond pulsars (MSPs) at low radio frequencies play an important role in understanding the Galactic pulsar population and characterising both their emission properties and the effects of the ionised interstellar medium…

MWA rapid follow-up of gravitational wave transients: prospects for detecting prompt radio counterparts Open

Jia-Jin Tian, G. E. Anderson, A J Cooper, K. Gourdji, M. Sokołowski , et al. · 2023

We present and evaluate the prospects for detecting coherent radio counterparts to gravitational wave (GW) events using Murchison Widefield Array (MWA) triggered observations. The MWA rapid-response system, combined with its buffering mode…

The Southern-sky MWA Rapid Two-metre (SMART) pulsar survey—II. Survey status, pulsar census, and first pulsar discoveries Open

N. D. R. Bhat, N. A. Swainston, S. J. McSweeney, Mengyao Xue, Bradley W. Meyers , et al. · 2023

In Paper I, we presented an overview of the Southern-sky MWA Rapid Two-metre (SMART) survey, including the survey design and search pipeline. While the combination of MWA’s large field-of-view and the voltage capture system brings a survey…

The Southern-sky MWA Rapid Two-metre (SMART) pulsar survey—I. Survey design and processing pipeline Open

N. D. R. Bhat, N. A. Swainston, S. J. McSweeney, Mengyao Xue, Bradley W. Meyers , et al. · 2023

We present an overview of the Southern-sky MWA Rapid Two-metre (SMART) pulsar survey that exploits the Murchison Widefield Array’s large field of view and voltage-capture system to survey the sky south of 30 $^{\circ}$ in declination for p…

The Southern-sky MWA Rapid Two-metre (SMART) pulsar survey—II. Survey status, pulsar census, and first pulsar discoveries – ADDENDUM Open

N. D. R. Bhat, N. A. Swainston, S. J. McSweeney, Mengyao Xue, Bradley W. Meyers , et al. · 2023

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MWA rapid follow-up of gravitational wave transients: Prospects for detecting prompt radio counterparts Open

Jia-Jin Tian, G. E. Anderson, A J Cooper, K. Gourdji, M. Sokołowski , et al. · 2023

We present and evaluate the prospects for detecting coherent radio counterparts to gravitational wave (GW) events using Murchison Widefield Array (MWA) triggered observations. The MWA rapid-response system, combined with its buffering mode…

MWAX: A new correlator for the Murchison Widefield Array Open

Ian S. Morrison, B. Crosse, G. Sleap, R. B. Wayth, A. Williams , et al. · 2023

We describe the design, validation, and commissioning of a new correlator termed ‘MWAX’ for the Murchison Widefield Array (MWA) low-frequency radio telescope. MWAX replaces an earlier generation MWA correlator, extending correlation capabi…

Discovery of a Steep-spectrum Low-luminosity Pulsar with the Murchison Widefield Array Open

N. A. Swainston, N. D. R. Bhat, M. Sokołowski, S. J. McSweeney, Sanjay Kudale , et al. · 2021

We report the discovery of the first new pulsar with the Murchison Widefield Array (MWA), PSR J0036−1033, a long-period (0.9 s) nonrecycled pulsar with a dispersion measure (DM) of 23.1 pc cm −3 . It was found after processing only a small…

Deep multiredshift limits on Epoch of Reionization 21 cm power spectra from four seasons of Murchison Widefield Array observations Open

Cathryn M. Trott, C. Jordan, Stuart Midgley, N. Barry, Bradley Greig , et al. · 2020

We compute the spherically averaged power spectrum from four seasons of data obtained for the Epoch of Reionization (EoR) project observed with the Murchison Widefield Array (MWA). We measure the EoR power spectrum over k = 0.07–3.0 h Mpc−…

Gridded and direct Epoch of Reionisation bispectrum estimates using the Murchison Widefield Array Open

Cathryn M. Trott, Catherine A Watkinson, C. Jordan, Shintaro Yoshiura, Suman Majumdar , et al. · 2019

We apply two methods to estimate the 21-cm bispectrum from data taken within the Epoch of Reionisation (EoR) project of the Murchison Widefield Array (MWA). Using data acquired with the Phase II compact array allows a direct bispectrum est…

No Low-frequency Emission from Extremely Bright Fast Radio Bursts Open

M. Sokołowski, N. D. R. Bhat, Jean‐Pierre Macquart, R. M. Shannon, K. W. Bannister , et al. · 2018

We present the results of a coordinated campaign conducted with the Murchison Widefield Array (MWA) to shadow fast radio bursts (FRBs) detected by the Australian Square Kilometre Array Pathfinder (ASKAP) at 1.4 GHz, which resulted in simul…

The Phase II Murchison Widefield Array: Design overview Open

R. B. Wayth, S. J. Tingay, Cathryn M. Trott, D. Emrich, M. Johnston‐Hollitt , et al. · 2018

We describe the motivation and design details of the ‘Phase II’ upgrade of the Murchison Widefield Array radio telescope. The expansion doubles to 256 the number of antenna tiles deployed in the array. The new antenna tiles enhance the cap…

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