Evolutionary Map of the Universe (EMU): a pilot search for diffuse, non-thermal radio emission in galaxy clusters with the Australian SKA Pathfinder

SW Duchesne, A Botteon, BS Koribalski… - Publications of the …, 2024 - cambridge.org
Clusters of galaxies have been found to host Mpc-scale diffuse, non-thermal radio emission
in the form of central radio halos and peripheral relics. Turbulence and shock-related …

The ACT-DR5 MCMF galaxy cluster catalog

M Klein, JJ Mohr, CT Davies - Astronomy & Astrophysics, 2024 - aanda.org
Galaxy clusters are useful cosmological probes and interesting astrophysical laboratories.
As the cluster samples continue to grow in size, a deeper understanding of the sample …

An Image-based Search for Pulsar Candidates in the MeerKAT Bulge Survey

DA Frail, E Polisensky, SD Hyman… - The Astrophysical …, 2024 - iopscience.iop.org
We report on the results of an image-based search for pulsar candidates toward the Galactic
bulge. We used mosaic images from the MeerKAT radio telescope that were taken as part of …

Multi-wavelength properties of three new radio-powerful z∼ 5.6 quasi-stellar objects discovered from RACS

L Ighina, A Caccianiga, A Moretti, JW Broderick… - Astronomy & …, 2024 - aanda.org
We present a multi-wavelength study of three new z∼ 5.6 quasi-stellar objects (QSOs)
identified from dedicated spectroscopic observations. The three sources were selected as …

Radio morphology of gamma-ray sources: Double-lobed radio sources

VS Paliya, DJ Saikia, A Domínguez… - The Astrophysical …, 2024 - iopscience.iop.org
The extragalactic γ-ray sky is dominated by relativistic jets aligned to the observer's line of
sight, ie, blazars. A few of their misaligned counterparts, eg, radio galaxies, are also …

A γ-Ray-emitting Collisional Ring Galaxy System in Our Galactic Neighborhood

VS Paliya, DJ Saikia - The Astrophysical Journal Letters, 2024 - iopscience.iop.org
The astrophysical γ-ray photons carry the signatures of the violent phenomena happening
on various astronomical scales in our Universe. This includes supernova remnants, pulsars …

The GLEAMing of the first supermassive black holes: III. Radio sources with ultra-faint host galaxies

JW Broderick, N Seymour, G Drouart… - Publications of the …, 2024 - cambridge.org
The GLEAMing of the first supermassive black holes: III. Radio sources with ultra-faint host
galaxies Page 1 Publications of the Astronomical Society of Australia (2024), 41, e071, 21 pages …

The Rapid ASKAP Continuum Survey III: Spectra and Polarisation In Cutouts of Extragalactic Sources (SPICE-RACS) first data release–CORRIGENDUM

AJM Thomson, D McConnell, E Lenc… - Publications of the …, 2024 - cambridge.org
Our data processing for SPICE-RACS-DR1 involved a two-stage process. First, image cubes
were produced using the ASKAPSOFT (Guzman et al., 2019) pipeline, and scripts that made …

DA 362: A Gamma-ray Emitting Compact Symmetric Object

S Swain, VS Paliya, DJ Saikia, CS Stalin - arXiv preprint arXiv:2412.12857, 2024 - arxiv.org
The Gamma-ray detection from an astrophysical object indicates the presence of an extreme
environment where high-energy radiation is produced. With the continuous monitoring of the …

Low-Frequency Turnover Star Forming Galaxies I: Radio Continuum Observations and Global Properties

JA Grundy, N Seymour, OI Wong… - arXiv preprint arXiv …, 2024 - arxiv.org
The broad-band radio spectral energy distribution (SED) of star-forming galaxies (SFGs)
contains a wealth of complex physics. We aim to determine the physical emission and loss …