AGN Feedback via Radiation and Radiation-Driven Outflows

I review the results from multi-dimensional, time-dependent simulations of
gas dynamics in AGN. I will focus on two types of outflows powered
by radiation emitted from the AGN central engine:
(i) outflows driven from the innermost part of an accretion disk
and (2) outflows driven from a large-scale inflow that is likely
the main supplier of material to the central engine. I discuss the relevance
of both types of outflows to the so-called AGN feedback problem. However,
the AGN feedback should not be considered separately from the AGN physics.
Therefore, I also discuss the issue whether the properties of the same
outflows are consistent with the gas properties in broad- and narrow-line
regions.