Dipole Toroidal Vortexes and Wind-Accretion Instability in Active Galaxy Nuclei

The torus concept as an essential structural component of active galactic nuclei (AGN) is generally accepted. Here, the situation is discussed when 'twisting' the torus by radiation or wind transforms it into dipole toroidal vortex which in turn can be the source of matter replenishing the accretion disk. Thus originating instability which can be responsible for quasar radiation flares accompanied by matter outbursts is also discussed. A 'matreshka' scheme for obscuring vortex torus structure that could explain the AGN variability and evolution is proposed. The model parameters estimated numerically for the luminosity close to the Eddington limit agree well with the observation