Extracting Energy from Accretion into Kerr Black Hole

Abstract

The highest efficiency of converting rest mass into energy by accreting matter into a Kerr black hole is ~ 31% (Thorne 1974). We propose a new process in which periods of accretion from a thin disk, and the associated spin-up of the black hole, alternate with the periods of no accretion and magnetic transfer of energy from the black hole to the disk. These cycles can repeat indefinitely, at least in principle, with the black hole mass increasing by ~ 66% per cycle, and up to ~ 43% of accreted rest mass radiated away by the disk.

4 pages, 1 figure

References in corpus (1)

• Extracting Energy from a Black Hole through Its Disk

Cited by in corpus (33)

• General Relativistic Magnetohydrodynamic Simulations of Magnetically Choked Accretion Flows around Black Holes
• Magnetically Arrested Disk: An Energetically Efficient Accretion Flow
• Hyper-accreting black hole as GRB central engine. I: Baryon loading in GRB jets
• Evolution characteristics of central black hole of magnetized accretion disc
• Coalescing neutron stars - a step towards physical models III. Improved numerics and different neutron star masses and spins
• Accretion Disk Torqued by a Black Hole
• Giant X-ray Bump in GRB 121027A: Evidence for Fall-back Disk Accretion
• Magnetically Torqued Neutrino-Dominated Accretion Flows for Gamma-ray Bursts
• Constraints on QSO models from a relation between the QSO luminosity function and the local black hole mass function
• Constraining the Type of Central Engine of GRBs with Swift Data
• Magnetic coupling of a rotating black hole with its surrounding accretion disk
• Observational Signatures of the Magnetic Connection between a Black Hole and a Disk
• Long-duration Gamma-ray Burst and Associated Kilonova Emission from Fast-spinning Black Hole--Neutron Star Mergers
• Neutrino-cooled Accretion Model with Magnetic Coupling for X-ray Flares in GRBs
• Thermal and nonthermal emission from a peculiar long-duration GRB 211211A
• QPO as the Rosetta Stone for understanding black hole accretion
• The morphology of the X-ray afterglows and of the jetted GeV emission in long GRBs
• Numerical and analytical solutions of Neutrino-Dominated Accretion Flows with a Non-Zero Torque Boundary Condition and its applications in Gamma-ray Bursts
• Influence of the Magnetic Coupling Process on the Advection Dominated Accretion Flows around Black Holes
• Evolution of Magnetic Fields around a Kerr Black Hole
• Extracting Energy from Black Hole through Transition Region
• A Toy Model for the Magnetic Connection between a Black Hole and a Disk
• Photometric and Spectroscopic Observations of GRB 190106A: Emission from Reverse and Forward Shocks with Late-time Energy Injection
• Influences of magnetic coupling process on the spectrum of a disk covered by the corona
• Energetics of Black Hole-Accretion Disk System with Magnetic Connection: Limit of Low Accretion Rate
• On the possible electromagnetic manifestations of merging black holes
• On the efficiency of the Blandford-Znajek mechanism for low angular momentum relativistic accretion
• Two Dimensional Poynting Flux Dominated Flow onto a Schwarzschild Black Hole
• Hot Settling Accretion Flow onto a Spinning Black Hole
• Toy model for a two-dimensional accretion disk dominated by Poynting flux
• A Disc-Corona Model for a Rotating Black Hole
• Magnetic Coupling of a Rotating Black Hole with Advection-Dominated Accretion Flows
• Relativistic global solutions of neutrino-dominated accretion flows with magnetic coupling