ASKAP Uncovers 15 Giant Radio Galaxies

2025-04-26
ASKAP Uncovers 15 Giant Radio Galaxies

The Australian Square Kilometre Array Pathfinder (ASKAP) telescope has discovered 15 new giant radio galaxies, each spanning over 3 million light-years. These rare galaxies, typically found in low-density environments, feature jets and lobes of synchrotron-emitting plasma. ASKAP's high sensitivity and wide field of view were crucial in this discovery, providing valuable data for studying the formation and evolution of radio galaxies. The largest galaxy, ASKAP J0107–2347, is a double-double radio galaxy with two sets of double lobes; its newly formed inner lobes already stretch about 2 million light-years.