Unipolar outflows and global meridional circulations in rotating accretion flows

Abstract

Using two-dimensional simulations of non-radiative viscous rotating black hole accretion flows, we show that the flows with alpha~0.1-0.3 self-organize to form stationary unipolar or bipolar outflows accompanied by global meridional circulations. The required energy comes, with efficiency \~0.001-0.01, from the matter directly accreted onto black hole. Observational implications are discussed.

5 pages, 4 figures, accepted by MNRAS

References in corpus (3)

• Hydrodynamical Non-radiative Accretion Flows in Two-Dimensions
• Low radiative efficiency accretion in the nuclei of elliptical galaxies
• Hard X-ray emission from elliptical galaxies

Cited by in corpus (5)

• Two-dimensional models of hydrodynamical accretion flows into black holes
• Advective Accretion Disks and Related Problems Including Magnetic Fields
• Bondi flow from a slowly rotating hot atmosphere
• Accretion disks around black holes: dynamical evolution, meridional circulations and gamma ray bursts
• On the Radial Structure of Radiatively Inefficient Accretion Flows with Convection