Generalized General Relativistic MHD Equations and Distinctive Plasma Dynamics around Rotating Black Holes
arXiv:0912.4930 · doi:10.1088/0004-637X/708/2/1459
Abstract
To study phenomena of plasmas around rotating black holes, we have derived a set of 3+1 formalism of generalized general relativistic magnetohydrodynamic (GRMHD) equations. Especially, we investigated general relativistic phenomena with respect to the Ohm's law. We confirmed the electromotive force due to the gravitation, centrifugal force, and frame-dragging effect in plasmas near the black holes. These effects are significant only in the local small-scale phenomena compared to the scale of astrophysical objects. We discuss the possibility of magnetic reconnection, which is triggered by one of these effects in a small-scale region and influences the plasmas globally. We clarify the conditions of applicability of the generalized GRMHD, standard resistive GRMHD, and ideal GRMHD for plasmas in black hole magnetospheres.
36 pages, 1 figure, Astrophysical Journal
References in corpus (5)
- General Relativistic Magnetohydrodynamic Simulations of Jet Formation and Large-Scale Propagation from Black Hole Accretion Systems
- Two-dimensional MHD simulations of relativistic magnetic reconnection
- Energy Extraction from a Rotating Black Hole by Magnetic Reconnection in Ergosphere
- Generalized Relativistic Magnetohydrodynamic Equations for Pair and Electron-Ion Plasmas
- Propagation of Electromagnetic Waves in Resistive Pair Plasma and Causal Relativistic Magnetohydrodynamics
Cited by in corpus (19)
- Role of electric charge in shaping equilibrium configurations of fluid tori encircling black holes
- Non-thermal Processes in Black-Hole-Jet Magnetospheres
- Relativistic Magnetic Reconnection in Kerr Spacetime
- Action Principles for Relativistic Extended Magnetohydrodynamics: A Unified Theory of Magnetofluid Models
- Retrograde versus prograde models of accreting black holes
- Collisionless Magnetic Reconnection in Curved Spacetime and the Effect of Black Hole Rotation
- Magnetic reconnection under centrifugal and gravitational electromotive forces
- Modification of magnetohydrodynamic waves by the relativistic Hall effect
- Gravitational electromotive force in magnetic reconnection around Schwarzschild black holes
- Generalized Magnetofluid Connections in Curved Spacetime
- Magnetic Connections in Curved Spacetime
- Covariant Magnetic Connection Hypersurfaces
- Relativistic hydrodynamic model with the average reverse gamma factor evolution for the degenerate plasmas: high-density ion-acoustic solitons
- Generalized general-relativistic magnetohydrodynamic equations for plasmas of active galactic nuclei in the era of the Event Horizon Telescope
- Charge separation instability in an unmagnetized disk plasma around a Kerr black hole
- Group velocity and causality in standard relativistic resistive magnetohydrodynamics
- Charged fluids encircling compact objects: force representations and conformal geometries
- Resistive Accretion Flows around a Kerr Black Hole
- Yet Another Modification of Relativistic Magnetohydrodynamic Waves: Electron Thermal Inertia