It is now well established that most massive galaxies host a central black hole and that the evolution of the population of active galactic nuclei (AGN) closely follows that of cosmic star formation. However, many questions remain open. What role do galaxy mergers play in feeding black holes ? Which mechanisms allow AGN to influence—or even regulate—star formation in their host galaxies? Are these mechanisms primarily radiative or mechanical? Is the frequency of nuclear activity episodes in so‑called “passive” galaxies compatible with the energy required to prevent the resumption of star formation? This workshop aims to provide an overview of the current state of knowledge on these issues by bringing together researchers from different disciplines. 

• The evolution AGN across the electromagnetic spectrum (radio, infrared, optical, UV, X‑rays)
• The characterization of the host galaxies of AGN;
• The role of galaxy interactions and mergers in triggering nuclear activity and driving black hole growth;
• AGN feedback mechanisms (radiative or mechanical), their impact on the interstellar and circumgalactic medium, and their role in regulating or quenching star formation;
• Cosmological and high‑resolution simulations incorporating physical prescriptions for black hole growth and feedback;
• Theoretical modelling of nuclear activity cycles and of the co‑evolution of galaxies and their central black holes.

23–24 April 2026