Pair Plasma Cascade in Rotating Black Hole Magnetospheres with a Split Monopole Flux Model

MC Sitarz, MV Medvedev, AL Ford - The Astrophysical Journal, 2023 - iopscience.iop.org
An electron-positron cascade in the magnetospheres of Kerr black holes (BHs) is a
fundamental ingredient to fueling the relativistic γ-ray jets seen at the polar regions of …

Electron-positron cascade in magnetospheres of spinning black holes

AL Ford, BD Keenan, MV Medvedev - Physical Review D, 2018 - APS
We quantitatively study the stationary, axisymmetric, force-free magnetospheres of spinning
(Kerr) black holes (BHs) and the conditions needed for relativistic jets to be powered by the …

Comprehensive analysis of magnetospheric gaps around Kerr black holes using 1D GRPIC simulations

S Kisaka, A Levinson, K Toma - The Astrophysical Journal, 2020 - iopscience.iop.org
Spark gaps are likely the source of plasma in active black hole (BH) magnetospheres. In this
paper, we present results of 1D general relativistic particle-in-cell simulations of a starved …

1D GRPIC Simulations of Stellar-Mass Black Hole Magnetospheres: Semi-Analytic Model of Gamma-Rays from Gaps

K Kin, S Kisaka, K Toma, SS Kimura… - arXiv preprint arXiv …, 2023 - arxiv.org
In the absence of a sufficient amount of plasma injection into the black hole (BH)
magnetosphere, the force-free state of the magnetosphere cannot be maintained, leading to …

Three-dimensional simulations of ergospheric disk-driven poynting jets

B Punsly - The Astrophysical Journal, 2007 - iopscience.iop.org
This Letter reports on three-dimensional (3D) simulations of Kerr black hole
magnetospheres that obey the general relativistic equations of perfect …

Pair plasma production in a force-free magnetosphere around a supermassive black hole

K Hirotani, I Okamoto - The Astrophysical Journal, 1998 - iopscience.iop.org
We quantitatively solve the problem of plasma supply to the stationary, axisymmetric, force-
free magnetosphere of a rotating black hole residing in an active galactic nucleus. At the …

Toward a Full MHD Jet Model of Spinning Black Holes. I. Framework and a Split Monopole Example

L Huang, Z Pan, C Yu - The Astrophysical Journal, 2019 - iopscience.iop.org
In this paper, we construct a framework for investigating the magnetohydrodynamical jet
structure of spinning black holes (BHs), where electromagnetic fields and fluid motion are …

High-Energy Gamma-Ray Emission from Galactic Kerr-Newman Black Holes. I. The Central Engine

B Punsly - The Astrophysical Journal, 1998 - iopscience.iop.org
A model of the central engine of the unidentified high-latitude galactic hard γ-ray (EGRET)
sources based on black hole electrodynamics is presented. The γ-ray emission is produced …

Energetic gamma radiation from rapidly rotating black holes

K Hirotani, HY Pu - The Astrophysical Journal, 2016 - iopscience.iop.org
Supermassive black holes (BHs) are believed to be the central powerhouse of active
galactic nuclei. Applying the pulsar outer-magnetospheric particle accelerator theory to BH …

Two-dimensional Particle-in-cell Simulations of Axisymmetric Black Hole Magnetospheres: Angular Dependence of the Blandford–Znajek Flux

K Hirotani, H Shang, R Krasnopolsky… - The Astrophysical …, 2023 - iopscience.iop.org
We examine the temporary evolution of axisymmetric magnetospheres around rapidly
rotating black holes (BHs), by applying our two-dimensional particle-in-cell simulation code …