Open AccessUnipolar outflows and global meridional circulations in rotating accretion flows
Author(s) -
Igumenshchev Igor V.
Publication year - 2000
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2000.03355.x
Subject(s) - physics , zonal and meridional , radiative transfer , accretion (finance) , meridional flow , astrophysics , accretion disc , astronomy , atmospheric sciences , quantum mechanics
Using two‐dimensional simulations of non‐radiative viscous rotating black hole accretion flows, we show that the flows with α ∼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 on to the black hole. Observational implications are discussed.