162 citations · 1.2k across the 54 of their papers we have counts for
52 papers
EMU/GAMA: Refining Dust Extinction Corrections for Hα Luminosity Functions Using Radio-Based Calibration
J. Willingham, A. Hopkins, T. Zafar +17
We present a novel approach to correcting H luminosity functions for dust extinction by calibrating against radio-based star formation rates (SFRs), using data from the Evolutio…
A long-period radio transient active for three decades
N. Hurley-Walker, N. Rea, S. J. McSweeney +22
Recently several long-period radio transients have been discovered, with strongly polarised coherent radio pulses appearing on timescales between tens to thousands of seconds [1,2]…
A radio transient with unusually slow periodic emission
N. Hurley-Walker, X. Zhang, A. Bahramian +7
The high-frequency radio sky is bursting with synchrotron transients from massive stellar explosions and accretion events, but the low-frequency radio sky has so far been quiet bey…
Rotation and flipping invariant self-organizing maps with astronomical images: A cookbook and application to the VLA Sky Survey QuickLook images
A. N. Vantyghem, T. J. Galvin, B. Sebastian +12
Modern wide field radio surveys typically detect millions of objects. Techniques based on machine learning are proving to be useful for classifying large numbers of objects. The se…
Ultra-deep ATCA imaging of 47 Tucanae reveals a central compact radio source
Alessandro Paduano, Arash Bahramian, James C. A. Miller-Jones +9
We present the results of an ultra-deep radio continuum survey, containing hours of observations, of the Galactic globular cluster 47 Tucanae with the Australia Telescope…
The Rapid ASKAP Continuum Survey III: Spectra and Polarisation In Cutouts of Extragalactic Sources (SPICE-RACS) First Data Release
Alec J. M. Thomson, David McConnell, Emil Lenc +23
The Australian SKA Pathfinder (ASKAP) radio telescope has carried out a survey of the entire Southern Sky at 887.5MHz. The wide area, high angular resolution, and broad bandwidth p…
Interactions between the jet and disk wind in a nearby radio intermediate quasar III Zw 2
Ailing Wang, Tao An, Shaoguang Guo +13
Disk winds and jets are ubiquitous in active galactic nuclei (AGN), and how these two components interact remains an open question. We study the radio properties of a radio-interme…
Rapid radio brightening of GRB 210702A
G. E. Anderson, T. D. Russell, H. M. Fausey +16
We observed the rapid radio brightening of GRB 210702A with the Australian Telescope Compact Array (ATCA) just 11hr post-burst, tracking early-time radio variability over a 5hr per…
Constraining the nature of the 18-min periodic radio transient GLEAM-X J162759.5-523504.3 via multi-wavelength observations and magneto-thermal simulations
N. Rea, F. Coti Zelati, C. Dehman +13
We observed the periodic radio transient GLEAM-X J162759.5-523504.3 (GLEAM-X J1627) using the Chandra X-ray Observatory for about 30-ks on January 22-23, 2022, simultaneously with…
Discovery of Peculiar Radio Morphologies with ASKAP using Unsupervised Machine Learning
Nikhel Gupta, Minh Huynh, Ray P. Norris +5
We present a set of peculiar radio sources detected using an unsupervised machine learning method. We use data from the Australian Square Kilometre Array Pathfinder (ASKAP) telesco…
Collimation of the kiloparsec-scale radio jets in NGC 2663
Velibor Velović, M. D. Filipović, L. Barnes +25
We present the discovery of highly-collimated radio jets spanning a total of 355 kpc around the nearby elliptical galaxy NGC 2663, and the possible first detection of recollimation…
Radio fossils, relics, and haloes in Abell 3266: cluster archaeology with ASKAP-EMU and the ATCA
C. J. Riseley, E. Bonnassieux, T. Vernstrom +21
Abell 3266 is a massive and complex merging galaxy cluster that exhibits significant substructure. We present new, highly sensitive radio continuum observations of Abell 3266 perfo…
Low frequency radio continuum imaging and SED modeling of 11 LIRGs: radio-only and FUV to radio bands
Subhrata Dey, Arti Goyal, Katarzyna Małek +5
We present the detailed analysis of 11 local luminous infrared galaxies (LIRGs) from ultraviolet through far-infrared to radio (70 MHz to 15 GHz) bands. We derive the a…
GaLactic and Extragalactic All-sky Murchison Widefield Array survey eXtended (GLEAM-X) I: Survey Description and Initial Data Release
Natasha Hurley-Walker, Timothy J. Galvin, Stefan W. Duchesne +15
We describe a new low-frequency wideband radio survey of the southern sky. Observations covering 72 - 231 MHz and Declinations south of have been performed with the Mur…
The GLEAMing of the first supermassive black holes: II. A new sample of high-redshift radio galaxy candidates
J. W. Broderick, G. Drouart, N. Seymour +27
While unobscured and radio-quiet active galactic nuclei are regularly being found at redshifts , their obscured and radio-loud counterparts remain elusive. We build upon our…
Deep ASKAP EMU Survey of the GAMA23 field: Properties of radio sources
Gülay Gürkan, I. Prandoni, A. O'Brien +19
We present the Australian Square Kilometre Array Pathfinder (ASKAP) observations of the Galaxy and Mass Assembly (GAMA)-23h field. The survey was carried out at 887.5 MHz and cover…
Wide-Band Spectral Variability of Peaked Spectrum Sources
K. Ross, N. Hurley-Walker, N. Seymour +3
Characterising spectral variability of radio sources is a technique that offers the ability to determine the astrophysics of the intervening media, source structure, emission and a…
Constraining the Radio Properties of the =6.44 QSO VIK J23183113
Luca Ighina, James K. Leung, Jess W. Broderick +19
The recent detection of the quasi-stellar object (QSO) VIKING J231818.3311346 (hereafter VIK J23183113) at redshift in the Rapid ASKAP Continuum Survey (RACS) uncove…
Mysterious Odd Radio Circle near the Large Magellanic Cloud -- An Intergalactic Supernova Remnant?
Miroslav D. Filipović, J. L. Payne, R. Z. E. Alsaberi +48
We report the discovery of J0624-6948, a low-surface brightness radio ring, lying between the Galactic Plane and the Large Magellanic Cloud (LMC). It was first detected at 888 MHz…
A Low Frequency Pilot Survey of Southern HII Regions in the Vela Constellation
Chenoa D. Tremblay, Tyler L. Bourke, James A. Green +3
Atomic ionised regions with strong continuum emission are often associated with regions of high-mass star formation and low-frequency (<2GHz) observations of these regions are need…
The GLEAMing of the First Supermassive Black Holes
Guillaume Drouart, Nick Seymour, Tim J. Galvin +7
We present the results of a new selection technique to identify powerful (WHz) radio galaxies towards the end of the Epoch of Reionisation. Our m…
The Nature and Likely Redshift of GLEAM J0917-0012
Guillaume Drouart, Nick Seymour, Jess W. Broderick +10
We previously reported a putative detection of a radio galaxy at z=10.15, selected from the GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey. The redshif…
The MWA Long Baseline Epoch of Reionisation Survey: I. Improved Source Catalogue for the EoR 0 field
C. R. Lynch, T. J. Galvin, J. L. B. Line +6
One of the principal systematic constraints on the Epoch of Reionisation (EoR) experiment is the accuracy of the foreground calibration model. Recent results have shown that highly…
The Evolutionary Map of the Universe Pilot Survey
Ray P. Norris, Joshua Marvil, J. D. Collier +45
We present the data and initial results from the first Pilot Survey of the Evolutionary Map of the Universe (EMU), observed at 944 MHz with the Australian Square Kilometre Array Pa…