Ringed accretion disks: instabilities

Abstract

We analyze the possibility that several instability points may be formed, due to the Paczyński mechanism of violation of mechanical equilibrium, in the orbiting matter around a supermassive Kerr black hole. We consider recently proposed model of ringed accretion disk, made up by several tori (rings) which can be corotating or counterrotating relative to the Kerr attractor due to the history of the accretion process. Each torus is governed by the general relativistic hydrodynamic Boyer condition of equilibrium configurations of rotating perfect fluids. We prove that the number of the instability points is generally limited and depends on the dimensionless spin of the rotating attractor.

15 pages, 2 figures multipanels, 3 tables. to appear in Astrophysical Journal Supplement Series

References in corpus (20)

• The power of relativistic jets is larger than the luminosity of their accretion disks
• Alignment of Magnetized Accretion Disks and Relativistic Jets with Spinning Black Holes
• Flows of X-ray gas reveal the disruption of a star by a massive black hole
• Acceleration of charged particles due to chaotic scattering in the combined black hole gravitational field and asymptotically uniform magnetic field
• Fuelling Active Galactic Nuclei
• Influence of the relict cosmological constant on accretion discs
• Tearing up a misaligned accretion disc with a binary companion
• The jet-disc connection in AGN
• Off-equatorial orbits in strong gravitational fields near compact objects
• Energy flows in thick accretion disks and their consequences for black hole feedback
• Relativistic effects on tidal disruption kicks of solitary stars
• The runaway instability in general relativistic accretion disks
• Ringed accretion disks: equilibrium configurations
• The slimming effect of advection on black-hole accretion flows
• Counter-Rotating Accretion Discs
• Von Zeipel's theorem for a magnetized circular flow around a compact object
• Extremal energy shifts of radiation from a ring near a rotating black hole
• Misaligned accretion on to supermassive black hole binaries
• The jets-accretion relation, mass-luminosity relation in Fermi blazars
• Jet/accretion and Unification for FSRQs/FRII and BL Lac objects/FRI radio galaxies

Cited by in corpus (19)

• Light escape cones in local reference frames of Kerr-de Sitter black hole spacetimes and related black hole shadows
• General relativistic polytropes with a repulsive cosmological constant
• Electromagnetic fields of slowly rotating magnetized compact stars in conformal gravity
• Ringed accretion disks: evolution of double toroidal configurations
• General relativistic rotational energy extraction from black holes-accretion disk systems
• Observers in Kerr spacetimes: the ergoregion on the equatorial plane
• Proto-jets configurations in RADs orbiting a Kerr SMBH: symmetries and limiting surfaces
• RADs energetics and constraints on emerging tori collisions around super-massive Kerr Black Holes
• Relating Kerr SMBHs in Active Galactic Nuclei to RAD configurations
• Dark matter effect on black hole accretion disks
• Influence of toroidal magnetic field in multi-accreting tori
• Limiting effects in clusters of misaligned toroids orbiting static SMBHs
• Dragged surfaces. On the accretion tori in the ergoregion
• Jet collision with accreting tori around SMBHs. GRHD and light surfaces constraints in aggregates of misaligned tori
• Embedded BHs and multipole globules: Clustered misaligned thick accretion disks around static SMBHs
• Magnification effect of Kerr metric by configurations of collisionless particles in non-isotropic kinetic equilibria
• On photons and matter inversion spheres from complex super-spinars accretion structures
• Charged fluids encircling compact objects: force representations and conformal geometries
• Lense-Thirring effect on accretion flow from counter-rotating tori