Issues in the Blandford-Znajek Process for GRB Inner Engine

Abstract

Several issues regarding the Blandford-Znajek process are discussed to demonstrate that it can be an effective mechanism for powering the gamma ray bursts. Using a simple circuit analysis it is argued that the disk power increases the effective power of the black hole-accretion disk system, although a part of disk power can be dissipated into black hole entropy. Within the framework of the force-free magnetosphere with the strong magnetic field, the magnetically dominated MHD flow is found to support the Blandford-Znajek process and it is demonstrated that the possible magnetic repulsion by the rotating black hole will not affect the efficiency substantially.

10 pages, 1 figure, 3 references added, more discussions on the magnetic field on the black hole, accepted for publication in ApJ

References in corpus (3)

• The Blandford-Znajek Process as a Centeral Engine for a Gamma Ray Burst
• Efficiency of Magnetized Thin Accretion Disks in the Kerr Metric
• The Evolution of the BL Lacertae Objects

Cited by in corpus (34)

• The Supernova -- Gamma-Ray Burst Connection
• Neutrino-dominated accretion flows as the central engine of gamma-ray bursts
• Activation of the Blandford-Znajek mechanism in collapsing stars
• A Theory of Gamma-Ray Bursts
• Numerical Study on GRB-Jet Formation in Collapsars
• Model of extended emission of short Gamma-ray Bursts
• Jet Luminosity of Gamma-ray Bursts: Blandford-Znajek Mechanism v.s. Neutrino Annihilation Process
• Close Binary Progenitors of Long Gamma Ray Bursts
• Black hole hyperaccretion inflow-outflow model. I. long and ultra-long gamma-ray bursts
• Can black-hole neutrino-cooled disks power short gamma-ray bursts?
• Testing black hole neutrino-dominated accretion discs for long-duration gamma-ray bursts
• Statistical analyses on the energies of X-ray plateaus and flares in gamma-ray bursts
• Outflows from black hole hyperaccretion systems: short and long-short gamma-ray bursts and "quasi-supernovae"
• X-ray light curve in GRB 170714A: evidence for quark star?
• Gamma-ray bursts: afterglows from cylindrical jets
• Black hole hyperaccretion inflow-outflow model. II. Long-duration gamma-ray bursts and supernova ${}^{56}\mathrm{Ni}$ bumps
• Comparison of gravitational waves from central engines of gamma-ray bursts: neutrino-dominated accretion flows, Blandford-Znajek mechanisms, and millisecond magnetars
• Fast radio burst counterparts and their implications for the central engine
• Continued Brightening of the Afterglow of GW170817/GRB 170817A as due to a Delayed Energy Injection
• Testing Blandford-Znajek mechanism in black hole hyperaccretion flows for long-duration gamma-ray bursts
• Black hole hyperaccretion in collapsars. II. Gravitational waves
• Constraints on Gamma-ray Burst Inner Engines in a Blandford-Znajek Framework
• Making Clean Energy with a Kerr Black Hole: a Tokamak Model for Gamma-Ray Bursts
• Black hole hyperaccretion in collapsars. III. GRB timescale
• Wave Properties of Isothermal Magneto-Rotational Fluids
• Neutrinos and gravitational waves from magnetized neutrino-dominated accretion discs with magnetic coupling
• Central Engine-Powered Bright X-ray Flares in Short Gamma-Ray Bursts: A Hint of Black Hole-Neutron Star Merger?
• Toy model for a two-dimensional accretion disk dominated by Poynting flux
• Two Dimensional Poynting Flux Dominated Flow onto a Schwarzschild Black Hole
• On the Theory of Gamma Ray Bursts and Hypernovae: The Black Hole Soft X-ray Transient Sources
• Relativistic global solutions of neutrino-dominated accretion flows with magnetic coupling
• Test the growth models of black hole by jointing LIGO and Insight-HXMT observations
• Exploring the central engines of gamma-ray bursts from prompt light curves
• Single-Pulse Gamma-Ray Bursts have Prevalent Hard-to-Soft Spectral Evolution