Mówca
Opis
Our research focuses on the earliest stages of radio activity in active galactic nuclei (AGN), combining time-domain studies of radio transients with low-frequency imaging of compact radio sources. Using multiwavelength observations, we investigate the physical mechanisms responsible for triggering radio jets, their early evolution, and their interaction with the surrounding interstellar medium. Radio transients provide a unique opportunity to observe the onset of AGN activity almost in real time, while sensitive low-frequency observations with LOFAR and NenuFAR allow us to trace the oldest synchrotron plasma associated with young radio sources. These observations provide valuable insights into the interaction between newly formed jets and their host galaxies, the role of the ambient medium in shaping jet propagation, and the impact of AGN feedback during the earliest phases of radio-source evolution. By combining high-resolution and low-frequency radio observations with optical, infrared, and X-ray data, we aim to build a comprehensive picture of the life cycle of compact AGN, the origin of radio loudness, and the physical processes governing the formation and evolution of radio jets.