Tidal disruption events (TDEs) give a view of accretion onto supermassive black holes that is orthogonal in a number of ways with that given by AGN. Inflow is in a very different regime because the system is always in a transient state. The accretion rate onto the black hole continually changes, but can at its peak be super-Eddington. The accretion flow is in inflow equilibrium over only a limited range of radii and is incompletely circularized. Outflows are similarly contrasting. Far from the black hole, the dominant effect is the expulsion of the half of the stellar mass left unbound after the disruption, whose shocks against surrounding gas can be bright in radio-frequency synchrotron emission. Close to the black hole, collimated radiation, particularly when a jet is present, can drive a mildly-relativistic outflow most easily distinguishable by the character of its Fe Kalpha variability.
// by Adi