activity
20112026
most citedA radio transient with unusually slow periodic emission

162 citations · 1.2k across the 54 of their papers we have counts for

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31 papers · 1 filter

astro-ph.GA2026

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…

astro-ph.GA2023★ 1 cited

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…

astro-ph.GA2022★ 24 cited

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…

astro-ph.GA2022★ 9 cited

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…

astro-ph.GA2022★ 38 cited

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…

astro-ph.GA2022★ 12 cited

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…

astro-ph.GA2022★ 2 cited

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…

astro-ph.GA2022★ 5 cited

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…

astro-ph.GA2022

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…

astro-ph.GA2022★ 14 cited

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…

astro-ph.GA2022★ 14 cited

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…

astro-ph.GA2021★ 8 cited

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…

astro-ph.GA2021★ 16 cited

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…

astro-ph.GA2021★ 2 cited

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…

astro-ph.GA2021★ 8 cited

Radio Continuum Sources behind the Large Magellanic Cloud

M. D. Filipović, I. S. Bojičić, K. R. Grieve +38

We present a comprehensive multi-frequency catalogue of radio sources behind the Large Magellanic Cloud between 0.2 and 20 GHz, gathered from a combination of new and legacy radio…

astro-ph.GA2021★ 5 cited

Revisiting the Giant Radio Galaxy ESO 422-G028: Part I. Discovery of a neutral inflow and recent star formation in a restarted giant

Henry R. M. Zovaro, Chris J. Riseley, Philip Taylor +4

Giant radio galaxies provide important clues into the life cycles and triggering mechanisms of radio jets. With large-scale jets spanning 1.8 Mpc, ESO 422-G028 () is a g…

astro-ph.GA2021★ 16 cited

Determination of Planetary Nebulae angular diameters from radio continuum Spectral Energy Distribution modeling

I. S. Bojicic, M. D. Filipovic, D. Urosevic +2

Powerful new, high resolution, high sensitivity, multi-frequency, wide-field radio surveys such as the Australian Square Kilometre Array Pathfinder (ASKAP) Evolutionary Map of the…

astro-ph.GA2021★ 31 cited

Remnant Radio Galaxies Discovered in a Multi-frequency Survey

B. Quici, N. Hurley-Walker, N. Seymour +20

The remnant phase of a radio galaxy begins when the jets launched from an active galactic nucleus are switched off. To study the fraction of radio galaxies in a remnant phase, we t…

astro-ph.GA2020★ 62 cited

Unexpected Circular Radio Objects at High Galactic Latitude

Ray P. Norris, Huib T. Intema, Anna D. Kapinska +26

We have found a class of circular radio objects in the Evolutionary Map of the Universe Pilot Survey, using the Australian Square Kilometre Array Pathfinder telescope. The objects…

astro-ph.GA2020★ 34 cited

The POlarised GLEAM Survey (POGS) II: Results from an All-Sky Rotation Measure Synthesis Survey at Long Wavelengths

C. J. Riseley, T. J. Galvin, C. Sobey +11

The low-frequency linearly-polarised radio source population is largely unexplored. However, a renaissance in low-frequency polarimetry has been enabled by pathfinder and precursor…

astro-ph.GA2020★ 14 cited

PKS 2250351: A Giant Radio Galaxy in Abell 3936

N. Seymour, M. Huynh, S. S. Shabala +27

We present a detailed analysis of the radio galaxy PKS 2250-351, a giant of 1.2 Mpc projected size, its host galaxy, and its environment. We use radio data from the Murchison Widef…

astro-ph.GA2019★ 32 cited

Radio Observations of Supernova Remnant G1.9+0.3

Kieran J. Luken, Miroslav D. Filipović, Nigel I. Maxted +18

We present 1 to 10GHz radio continuum flux density, spectral index, polarisation and Rotation Measure (RM) images of the youngest known Galactic Supernova Remnant (SNR) G1.9+0.3, u…

astro-ph.GA2019★ 12 cited

The ATLAS 9.0 GHz Survey of the Extended Chandra Deep Field South: The Faint 9.0 GHz Radio Population

M. T. Huynh, N. Seymour, R. P. Norris +1

We present a new image of the 9.0 GHz radio emission from the extended Chandra Deep Field South. A total of 181 hours of integration with the Australia Telescope Compact Array has…

astro-ph.GA2019★ 29 cited

The ASKAP-EMU Early Science Project:Radio Continuum Survey of the Small Magellanic Cloud

T. D. Joseph, M. D. Filipović, E. J. Crawford +53

We present two new radio continuum images from the Australian Square Kilometre Array Pathfinder (ASKAP) survey in the direction of the Small Magellanic Cloud (SMC). These images ar…