activity
20242026
collaborators

9 papers

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

EMU Radio Observations of Barred Spiral Galaxy NGC 5938 (Araish)

H. Zakir, M. D. Filipović, L. Barnes +14

We present multi-wavelength observations of the nearby spiral galaxy NGC 5938 (Araish) to investigate the origin of its radio emission, specifically the contribution from active ga…

astro-ph.CO2025

Cross-correlating the EMU Pilot Survey 1 with CMB lensing: Constraints on cosmology and galaxy bias with harmonic-space power spectra

K. Tanidis, J. Asorey, C. S. Saraf +8

We measured the harmonic-space power spectrum of galaxy clustering auto-correlation from the Evolutionary Map of the Universe Pilot Survey 1 data (EMU PS1) and its cross-correlatio…

astro-ph.GA2025

Deep polarimetry study reveals double ring ORC-like structures

Sam Taziaux, Dominik J. Bomans, Christopher J. Riseley +10

New observations with the current generation of advanced radio interferometers, such as ASKAP and MeerKAT, have led to the discovery of new classes of extended radio sources of unk…

astro-ph.GA2025

EMU and the DRAGNs I: A Catalogue of DRAGNs

Ray P. Norris, Miranda Yew, Evan Crawford +10

We present a catalogue of 3557 Double Radio sources associated with Active Galactic Nuclei (DRAGNs) from the First Pilot Survey of the Evolutionary Map of the Universe (EMU), obser…

astro-ph.GA2025

Two intersecting radio shells: relics of galaxy merger shocks ?

Bärbel S. Koribalski, Klaus Dolag, Ildar Khabibullin +3

We present the discovery of two intersecting radio shells, likely radio relics, surrounding a compact galaxy group dominated by a massive elliptical galaxy. The shells present as p…