385 citations · 2.1k across the 65 of their papers we have counts for
30 papers · 1 filter
Helical radio jets as probes of magnetised cluster environments: Periodic Faraday Rotation Revealed in the Corkscrew Galaxy by POSSUM
Sarah N. Bradbury, C. S. Anderson, N. M. McClure-Griffiths +14
Jets from active galactic nuclei (AGN) that exhibit regular plane-of-sky oscillations may provide a probe of magnetised plasma within the jets and their local intracluster medium (…
Stingrays in the radio sky: Two unusual diffuse radio relic sources in the direction of the Magellanic Stream
Zachary J Smeaton, Miroslav D Filipovic, Barbel S Koribalski +17
We present the discovery of two extended, low surface brightness radio continuum sources, each consisting of a near-circular body and an extended tail of emission, nicknamed Stingr…
The Polarisation Sky Survey of the Universe's Magnetism (POSSUM): Science Goals and Survey Description
B. M. Gaensler, G. H. Heald, N. M. McClure-Griffiths +57
The Australian SKA Pathfinder (ASKAP) offers powerful new capabilities for studying the polarised and magnetised Universe at radio wavelengths. In this paper, we introduce the Pola…
The Evolutionary Map of the Universe: A new radio atlas for the southern hemisphere sky
A. M. Hopkins, A. Kapinska, J. Marvil +70
We present the Evolutionary Map of the Universe (EMU) survey conducted with the Australian Square Kilometre Array Pathfinder (ASKAP). EMU aims to deliver the touchstone radio atlas…
Relighting the fire in Hickson Compact Group (HCG) 15: magnetised fossil plasma revealed by the SKA Pathfinders & Precursors
C. J. Riseley, T. Vernstrom, L. Lovisari +26
In the context of the life cycle and evolution of active galactic nuclei (AGN), the environment plays an important role. In particular, the over-dense environments of galaxy groups…
Improved constraints on the Faraday rotation towards eight fast radio bursts using dense grids of polarized radio galaxies
Ayush Pandhi, Bryan M. Gaensler, Ziggy Pleunis +6
We present 2-4 GHz observations of polarized radio galaxies towards eight fast radio bursts (FRBs), producing grids of Faraday rotation measure (RM) sources with sky densities of 9…
Ram-pressure stripped radio tails detected in the dynamically active environment of the Shapley Supercluster
P. Merluzzi, T. Venturi, G. Busarello +13
We study the radio continuum emission of four galaxies experiencing ram-pressure stripping in four clusters of the Shapley supercluster at redshift z~0.05. Multi-band (235-1367 MHz…
Probing the Magnetised Gas Distribution in Galaxy Groups and the Cosmic Web with POSSUM Faraday Rotation Measures
Craig S. Anderson, N. M. McClure-Griffiths, L. Rudnick +21
We present initial results from the Polarisation Sky Survey of the Universe's Magnetism (POSSUM), analysing 22,817 Faraday Rotation Measures (RMs) with median uncertainties of 1.2…
Evolutionary Map of the Universe (EMU): Observations of Filamentary Structures in the Abell S1136 Galaxy Cluster
Peter. J. Macgregor, Ray P. Norris, Andrew O'Brien +17
We present radio observations of the galaxy cluster Abell S1136 at 888 MHz, using the Australian Square Kilometre Array Pathfinder radio telescope, as part of the Evolutionary Map…
ASKAP reveals the radio tail structure of the Corkscrew Galaxy shaped by its passage through the Abell 3627 cluster
Bärbel S. Koribalski, Stefan W. Duchesne, Emil Lenc +12
Among the bent tail radio galaxies common in galaxy clusters are some with long, collimated tails (so-called head-tail galaxies) shaped by their interactions with the intracluster…
The Physalis system: Discovery of ORC-like radio shells around a massive pair of interacting early-type galaxies with offset X-ray emission
Bärbel S. Koribalski, Ildar Khabibullin, Klaus Dolag +7
We present the discovery of large radio shells around a massive pair of interacting galaxies and extended diffuse X-ray emission within the shells. The radio data were obtained wit…
RG-CAT: Detection Pipeline and Catalogue of Radio Galaxies in the EMU Pilot Survey
Nikhel Gupta, Ray P. Norris, Zeeshan Hayder +15
We present source detection and catalogue construction pipelines to build the first catalogue of radio galaxies from the 270 pilot survey of the Evolutionary Map of the…
EMU/GAMA: A Technique for Detecting Active Galactic Nuclei in Low Mass Systems
Jahang Prathap, Andrew M. Hopkins, Aaron S. G. Robotham +17
We propose a new method for identifying active galactic nuclei (AGN) in low mass () galaxies. This method relies on spectral energy distribution (SED) fi…
The cosmic radio background from 150 MHz--8.4 GHz, and its division into AGN and star-forming galaxy flux
Scott A. Tompkins, Simon P. Driver, Aaron S. G. Robotham +4
We present a revised measurement of the extra-galactic background light (EBL) at radio frequencies based on a near complete compendium of radio source counts. We present the radio-…
The Host Galaxies of Hybrid Morphology Radio Sources
Andra Stroe, Victoria Catlett, Jeremy J. Harwood +2
Based on their differing radio morphologies, powerful radio galaxies can be separated into the Fanaroff-Riley I (FR-I) and II (FR-II) classes. Hybrid morphology radio sources (HyMo…
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…
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…
MeerKAT uncovers the physics of an Odd Radio Circle
Ray P. Norris, J. D. Collier, Roland M. Crocker +14
Odd Radio Circles (ORCs) are recently-discovered faint diffuse circles of radio emission, of unknown cause, surrounding galaxies at moderate redshift ($z ~ 0.2-0.6). Here we presen…
The Galactic Faraday rotation sky 2020
Sebastian Hutschenreuter, Craig S. Anderson, Sarah Betti +34
This work gives an update to existing reconstructions of the Galactic Faraday rotation sky by processing almost all Faraday rotation data sets available at the end of the year 2020…
Low(er) frequency follow-up of 28 candidate, large-scale synchrotron sources
Torrance Hodgson, Melanie Johnston-Hollitt, Benajmin McKinley +2
We follow up on a report by Vacca et al. (2018) of 28 candidate large-scale diffuse synchrotron sources in an 8°8° area of the sky (centred at RA 5h0m0s Dec 5°48'0''). Thes…
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…
Unveiling the cause of hybrid morphology radio sources (HyMoRS)
Jeremy J. Harwood, Tessa Vernstrom, Andra Stroe
Hybrid morphology radio sources (HyMoRS) are a rare group of radio galaxies in which differing Fanaroff & Riley morphologies (FR I/II) are observed for each of the two lobes. While…
Source counts and confusion at 72-231 MHz in the MWA GLEAM survey
T. M. O. Franzen, T. Vernstrom, C. A. Jackson +5
The GaLactic and Extragalactic All-sky MWA survey (GLEAM) is a radio continuum survey at 72-231 MHz of the whole sky south of declination +30 deg, carried out with the Murchison Wi…
Angular Sizes of Jy Radio Sources
W. D. Cotton, J. J. Condon, K. I. Kellermann +6
We made two new sensitive (rms noise sigma_n ~ 1 microJy/beam) high resolution (theta = 3.0" and theta = 0.66" FWHM) S--band (2 < nu < 4 GHz) images covering a single JVLA primary…