Radio galaxies as a research area focus on extragalactic systems whose active galactic nuclei and associated relativistic jets emit strongly at radio wavelengths, often dominating their bolometric output. This field encompasses the physics of jet launching and collimation from accreting supermassive black holes, particle acceleration, synchrotron and inverse-Compton emission processes, and the interaction of jets and radio lobes with the interstellar and intracluster medium. Research on radio galaxies is central to understanding AGN feedback in galaxy formation and evolution, environmental dependence of radio-loud activity, large-scale magnetic fields, and the use of radio-loud AGN as probes of cosmology and large-scale structure.
An international team of astronomers has employed the MeerKAT radio telescope to investigate giant radio galaxies in the field of the Cosmological Evolution Survey (COSMOS). They found a new giant radio galaxy that had not ...
