activity
20132026
most citedThe LOFAR Two-metre Sky Survey -- V. Second data release

489 citations · 2k across the 89 of their papers we have counts for

collaborators

93 papers

astro-ph.GA2026

Radio ghosts: Radio polarimetry study of newly discovered cluster minihalo candidates or radio tailed galaxies

Sam Taziaux, Christopher J. Riseley, Stefan W. Duchesne +5

Extended diffuse radio emission in the central regions of galaxy clusters is commonly associated with non-thermal processes in the intracluster medium (ICM), but its origin and the…

astro-ph.GA2026

Cosmic-ray electron propagation in the peculiar barred spiral galaxy NGC 2442

Shengtao Wang, Xiaohui Sun, Volker Heesen +13

Face-on spiral galaxies offer a favorable geometry for studying magnetic-field structures and cosmic-ray (CR) propagation because projection effects and structural overlap are redu…

astro-ph.CO2026

Investigating the magnetic field in the inter-cluster filament between Abell 3667 and Abell 3651 with POSSUM

C. Stuardi, S. P. O'Sullivan, L. Rudnick +19

[Abridged abstract] The objective of this study is to measure the magnetic field within the prominent inter-cluster filament recently detected in X-rays by the extended ROentgen Su…

astro-ph.CO2026

A "MeerKAT-meets-LOFAR" Study of 2A 0335+096: Discovery of a Complex 500 kpc Radio Halo in a Disturbed Cool-Core Cluster

C. J. Riseley, R. J. van Weeren, L. Lovisari +9

The emerging picture of radio haloes and mini-haloes in galaxy clusters is more blurred and far less distinct than once thought. While both trace cosmic ray electrons and magnetic…

astro-ph.CO2026

The plethora of diffuse emission in Abell 2034 as revealed by MeerKAT polarization observations

A. Bonafede, M. Balboni, G. W. Pratt +15

We present MeerKAT observations of the galaxy cluster Abell 2034, a massive (M_500=5.21 10^14 solar masses) nearby cluster in a merging state. Previous observations at 144 MHz have…

astro-ph.GA2026

Bridging the mass gap: Diffuse radio emission in GAMA galaxy groups using EMU and DINGO survey data

Sai Wagh, Tessa Vernstrom, Luke J. M. Davies +11

Diffuse radio emission provides a powerful probe of non-thermal processes in the large-scale structure, yet its properties in galaxy groups remain poorly constrained. Using deep 94…

astro-ph.GA2026

Galactic Hubs: New Insights and SKA View of AGN Feedback in Galaxy Groups

T. Pasini, M. Brienza, C. J. Riseley

Over the last two decades, significant effort has been devoted to understand the physical processes involved in galaxy evolution. In this context, AGN feedback has emerged as the l…

astro-ph.CO2026

Magnetic fields at the dawn of structure formation I. The CARLA J1510+5958 proto-cluster

A. Pagliotta, A. Bonafede, C. Stuardi +4

Magnetic fields are a fundamental ingredient of the Universe, influencing the formation and evolution of cosmic structures. While magnetic fields in local galaxy clusters have been…

astro-ph.IM2026

The Murchison Widefield Array Phase III upgrade: Sensitivity Doubled, Number of Baselines Quadrupled, Flexibility Enhanced, and EoR Observations Optimised

S. J. Tingay, M. Johnston-Hollitt, R. B. Wayth +32

We describe the latest iteration of upgrades (designated Phase III) to the Murchison Widefield Array (MWA), in the fourth paper in a series that covers the evolution of the telesco…

astro-ph.GA2026

ASKAP EMU detection of an Odd Radio Circle (ORC) candidate: J094412-751016 (Anglerfish)

M. D. Filipović, Z. J. Smeaton, A. C. Bradley +33

We report diffuse extended radio-continuum emission spatially coinciding with the IR source WISEA J094409.17-751012.8, and a semi-variable star, V687 Carinae. We use 944 MHz radio…

astro-ph.GA2026

MEDUSA I. Tracing magnetic field structures in tidal arms of the dwarf-dwarf merger NGC 1487

Sam Taziaux, Aritra Basu, Samata Das +11

Dwarf galaxies are important laboratories for studying cosmic magnetism because they can maintain strong magnetic fields via the action of turbulent dynamo despite their low mass a…

astro-ph.GA2026★ 17 cited

The LOFAR Two-metre Sky Survey: VII. Third Data Release

T. W. Shimwell, M. J. Hardcastle, C. Tasse +99

We present the third data release of the LOFAR Two-metre Sky Survey (LoTSS-DR3). The survey images cover 88% of the northern sky and were created from 12,950 hrs of data (18.6 PB)…

astro-ph.GA2026

The GLEAM 4-Jy (G4Jy) Sample: III. Further host-galaxy identification, and redshift assessment

Sarah V. White, Precious K. Sejake, Kshitij Thorat +17

In this paper we present 127 new host-galaxy identifications for G4Jy sources (S_151MHz > 4 Jy), based on radio images from MeerKAT, the Very Large Array Sky Survey (VLASS), and th…

astro-ph.IM2026★ 1 cited

RM-Tools: Software for Analyzing Polarized Radio Spectra

Cameron L. Van Eck, Cormac R. Purcell, Lerato Baidoo +19

Polarization observations using modern radio telescopes cover large numbers of frequency channels over broad bandwidths, and require advanced techniques to extract reliable scienti…

astro-ph.CO2026

MeerKAT observations of Abell 1775 and Abell 1795: the discovery of a hadronic radio halo?

R. J. van Weeren, E. Osinga, G. Brunetti +13

Giant radio haloes are diffuse synchrotron sources typically found in merging galaxy clusters, while smaller mini-haloes occur in cool-core clusters. Both trace cosmic-ray electron…

astro-ph.GA2025

The GLEAM 4-Jy (G4Jy) Sample: IV. Multiwavelength data and analysis

Sarah V. White, Precious K. Sejake, Kshitij Thorat +17

We provide an updated 'multiwavelength' version of the G4Jy catalogue (available at https://github.com/svw26/G4Jy, https://zenodo.org/communities/g4jy/records, and through VizieR),…

astro-ph.CO2025★ 1 cited

The life of central radio galaxies in clusters: AGN-ICM studies of eRASS1 clusters in the ASKAP fields

Angie Veronica, Thomas H. Reiprich, Florian Pacaud +35

The mechanical feedback from the central AGNs can be crucial for balancing the radiative cooling of the intracluster medium at the cluster centre. We aim to understand the relation…

astro-ph.GA2025

GLEAM-300: The GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey at 300 MHz

S. W. Duchesne, J. H. Cook, N. Hurley-Walker +11

In this paper we present a wide-field radio survey at 300 MHz covering the sky from using the Murchison Widefield Array (MWA). Th…

astro-ph.GA2025★ 1 cited

CHILLING: Continuum Halos in LVHIS Local Irregular Nearby Galaxies - Radio continuum spectral behavior of dwarf galaxies

Sam Taziaux, Megan C. Johnson, Onic I. Shuvo +13

Dwarf galaxies, due to their shallow gravitational potentials, provide critical environments for studying feedback mechanisms from star formation and its impacts on dwarf galaxy ev…

astro-ph.CO2025★ 4 cited

Constraining the magnetic field in the galaxy cluster Abell 2142 using MeerKAT L-band polarisation data

A. Pagliotta, C. J. Riseley, A. Bonafede +2

Magnetic fields permeate the Universe, including galaxy clusters, and affect the thermodynamical properties of the intra-cluster medium (ICM). Cosmological simulations predict that…

astro-ph.SR2025★ 3 cited

Evolutionary Map of the Universe: Detection and Analysis of the Shell Surrounding the Runaway Wolf-Rayet Star WR16

A. C. Bradley, M. D. Filipović, Z. J. Smeaton +18

We present the first radio--continuum detection of the circumstellar shell around the well-known WN8 type Wolf-Rayet star WR16 at 943.5\,MHz using the \ac{ASKAP} \ac{EMU} survey. A…

astro-ph.GA2025

MWA and VLA Observations of Diffuse Radio Lobes in M 87

Linhui Wu, Fu-Guo Xie, Qian Zheng +12

This study investigates the projected, quasi-symmetric -scale diffuse radio lobes surrounding the giant elliptical galaxy M\,87, utilizing well-sampled wideband ($\…

astro-ph.GA2025★ 1 cited

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…

astro-ph.GA2025★ 20 cited

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…