Supermassive black holes grow at the centre of galaxies in consonance with them. In this
Review Article, we discuss the mass-feeding mechanisms that lead to this growth in active …

Interactions between galaxies are predicted to cause gas inflows that can potentially trigger
nuclear activity. Since the inflowing material can obscure the central regions of interacting …

We analyze the two-dimensional distribution and kinematics of the stars as well as
molecular and ionized gas in the central few hundred parsecs of five active and five matched …

Distant powerful radio-loud active galactic nuclei (RLAGN) tend to reside in dense
environments and are commonly found in protoclusters at z> 1.3. We examine whether this …

Research over the past decade has shown diminishing evidence for major galaxy mergers
being a dominant mechanism for the growth of supermassive black holes (BHs) in galaxies …

We describe a complete volume limited sample of nearby active galaxies selected by their
14–195 keV luminosity, and outline its rationale for studying the mechanisms regulating gas …

It is not yet clear what triggers the activity of active galactic nuclei (AGNs), but galaxy
merging has been suspected to be one of the main mechanisms fueling the activity. Using …

Observational studies are increasingly finding evidence against major mergers being the
dominant mechanism responsible for triggering an active galactic nucleus (AGN). After …

Active galactic nuclei (AGNs), particularly the most luminous AGNs, are commonly assumed
to be triggered through major mergers; however, observational evidence for this scenario is …

While supermassive black holes are ubiquitous features of galactic nuclei, only a small
minority are observed during episodes of luminous accretion. The physical mechanism (s) …