MeerKAT's large number (64) of 13.5 m diameter antennas, spanning 8 km with a densely
packed 1 km core, create a powerful instrument for wide-area surveys, with high sensitivity …

We present the data and initial results from the first pilot survey of the Evolutionary Map of
the Universe (EMU), observed at 944 MHz with the Australian Square Kilometre Array …

Abstract The Square Kilometre Array (SKA) project consists of delivering two largest radio
telescope arrays being built by the SKA Observatory (SKAO), which is an intergovernmental …

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 present …

A new class of extragalactic astronomical sources discovered in 2021, named odd radio
circles (ORCs), are large rings of faint, diffuse radio continuum emission spanning …

We report the discovery of J0624–6948, a low-surface brightness radio ring, lying between
the Galactic Plane and the large magellanic cloud (LMC). It was first detected at 888 MHz …

The origin of arcmin-sized odd radio circles (ORCs) found in modern all-sky radio surveys
remains uncertain, with explanations ranging from starburst/active galactic nucleus-driven …

We investigate shock structures driven by merger events in high-resolution simulations that
result in a galaxy with a virial mass M≈ 10 12 M⊙. We find that the sizes and morphologies …

In this paper we explore the scientific synergies between Athena and some of the key multi-
messenger facilities that should be operative concurrently with Athena. These facilities …

We present the discovery of another odd radio circle (ORC) with the Australian Square
Kilometre Array Pathfinder (ASKAP) at 944 MHz. The observed radio ring, ORC J0102 …