The Galactic Centre: A Laboratory for Inflow, Outflow, and Feedback Regulated Star Formation

The Galactic Centre (GC) is the most extreme region of the Milky Way, hosting a supermassive black hole and exhibiting a range of phenomena including star formation, large-scale gas flows, magnetic loops, and galactic winds. Its proximity offers an exceptional opportunity to study the complex interplay of dynamics, chemistry, and feedback in galactic nuclei at high resolution. One of the key processes shaping the GC is the inflow of dense gas driven by the Galactic bar into the nuclear region. Although this environment is dominated by turbulence, strong shear, and tidal forces that are generally considered hostile to star formation, our recent work reveals clear evidence of active star formation within this high-velocity inflow. This challenges the traditional understanding of where and how stars can form in galaxies. In addition, we have identified the molecular component of the nuclear outflow extending from the central few hundred parsecs to the halo. In this talk, I will present multiwavelength observations that shed light on these newly discovered features of the Milky Way's nucleus. I will focus on how gas inflow and feedback regulate star formation under extreme conditions and shape the broader evolution of the Galaxy. These results are particularly compelling because they emerge from a galaxy that is neither a starburst system nor hosts an active galactic nucleus, making the Milky Way a uniquely accessible reference point for understanding feedback-driven evolution in galactic centres.