Discovery of Ultra-Steep Spectrum Giant Radio Galaxy with Recurrent Radio Jet Activity in Abell 449
Dominika Hunik and Marek Jamrozy 2016 ApJ 817 L1
A 1.3 Mpc diffuse radio source was found in the vicinity of the Abell 449 cluster of galaxies. The parent galaxy of this extended relic structure appears to be starting new jet activity.