278 citations · 5k across the 114 of their papers we have counts for
9 papers · 1 filter
Building models for extended radio sources: implications for Epoch of Reionisation science
Cathryn M. Trott, Randall B. Wayth
We test the hypothesis that limitations in the sky model used to calibrate an interferometric radio telescope, where the model contains extended radio sources, will generate bias i…
Follow up of GW170817 and its electromagnetic counterpart by Australian-led observing programs
I. Andreoni, K. Ackley, J. Cooke +122
The discovery of the first electromagnetic counterpart to a gravitational wave signal has generated follow-up observations by over 50 facilities world-wide, ushering in the new era…
The challenges of low-frequency radio polarimetry: lessons from the Murchison Widefield Array
Emil Lenc, C. S. Anderson, N. Barry +26
We present techniques developed to calibrate and correct Murchison Widefield Array (MWA) low frequency (72-300 MHz) radio observations for polarimetry. The extremely wide field-of-…
Characterisation of the ionosphere above the Murchison Radio Observatory using the Murchison Widefield Array
C. H. Jordan, S. Murray, C. M. Trott +6
We detail new techniques for analysing ionospheric activity, using Epoch of Reionisation (EoR) datasets obtained with the Murchison Widefield Array (MWA), calibrated by the `Real-T…
A high resolution foreground model for the MWA EoR1 field: model and implications for EoR power spectrum analysis
P. Procopio, R. B. Wayth, J. Line +23
The current generation of experiments aiming to detect the neutral hydrogen signal from the Epoch of Reionisation (EoR) is likely to be limited by systematic effects associated wit…
An Improved Statistical Point-Source Foreground Model for the Epoch of Reionization
Steven G. Murray, Cathryn M. Trott, Christopher H. Jordan
We present a sophisticated statistical point-source foreground model for low-frequency radio Epoch of Reionization (EoR) experiments using the 21 cm neutral hydrogen emission line.…
Spectral performance of Square Kilometre Array Antennas II: Calibration performance
Cathryn M. Trott, Eloy de Lera Acedo, Randall B. Wayth +4
We test the bandpass smoothness performance of two prototype Square Kilometre Array (SKA) SKA1-Low log-periodic dipole antennas, the SKALA2 and SKALA3 (`SKA Log-periodic Antenna'),…
Spectral energy distribution and radio halo of NGC 253 at low radio frequencies
A. D. Kapinska, L. Staveley-Smith, R. Crocker +67
We present new radio continuum observations of NGC253 from the Murchison Widefield Array at frequencies between 76 and 227 MHz. We model the broadband radio spectral energy distrib…
Spectral performance of SKA Log-periodic Antennas I: Mitigating spectral artefacts in SKA1-LOW 21-cm cosmology experiments
Eloy de Lera Acedo, Cathryn M. Trott, Randall B. Wayth +6
This paper is the first in a series of papers describing the impact of antenna instrumental artefacts on the 21-cm cosmology experiments to be carried out by the low frequency inst…