|
Abstract |
Dynamical mechanisms are essential to exchange angular momentum in galaxies, drive the
gas to the center, and fuel the central super-massive black holes. While at 100pc scale, the
gas is sometimes stalled in nuclear rings, recent observations reaching 10pc scale, or sixty
mas with ALMA, have revealed, within the sphere of influence of the black hole, smoking
gun evidence of fuelling. Observations of AGN feedback will be described, together with
the suspected responsible mechanisms. Molecular outflows are frequently detected in
active galaxies with ALMA and NOEMA, with loading factors between 1 and 5. When driven
by AGN with escape velocity, these outflows are therefore a clear way to moderate or
suppress star formation. Molecular disks, or tori, are detected at 10pc-scale, kinematically
decoupled from their host disk, with random orientation. They can be used to measure the
black hole mass. |
