  External accretion events such as a galaxy merger or the accretion of gas
from the immediate environment of a galaxy, can create a large misalignment
between the gas and the stellar kinematics. Numerical simulations have
suggested that misaligned structures may promote the inflow of gas to the
nucleus of the galaxy and the accretion of gas by the central supermassive
black hole. We show for the first time that galaxies with a strong misalignment
between the ionised gas and stellar kinematic angles have a higher observed
fraction of active black holes than galaxies with aligned rotation of gas and
stars. The increase in black hole activity suggests that the process of
formation and/or presence of misaligned structures is connected with the
fuelling of active supermassive black holes.
