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This Letter analyzes 3-dimensional simulations of Kerr black hole magnetospheres that obey the general relativistic equations of perfect magnetohydrodynamics (MHD). Particular emphasis is on the event horizon magnetosphere (EHM) which is…

Astrophysics · Physics 2009-11-13 Brian Punsly

This article investigates the physics that is responsible for creating the outgoing Poynting flux emanating from the ergosphere of a rotating black hole in the limit that the magnetic energy density greatly exceeds the plasma rest mass…

Astrophysics · Physics 2009-11-13 Brian Punsly

This article reports on three-dimensional (3-D) MHD simulations of non-rotating and rapidly rotating black holes and the adjacent black hole accretion disk magnetospheres. A particular emphasis is placed on the vertical magnetic flux that…

High Energy Astrophysical Phenomena · Physics 2015-05-14 Brian Punsly , Igor V. Igumenshchev , Shigenobu Hirose

This Letter investigates the physics that is responsible for creating the current system that supports the outgoing Poynting flux emanating from the ergosphere of a rotating black hole in the limit that the magnetic energy density greatly…

Astrophysics · Physics 2007-05-23 Brian Punsly

This Letter investigates the origin of the asymmetric magnetic field line geometry in the ergospheric disk (and the corresponding asymmetric powerful jet) in 3-D perfect magnetohydrodynamic (MHD) numerical simulations of a rapidly rotating…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Brian Punsly

To investigate the formation mechanism of relativistic jets in active galactic nuclei and micro-quasars, we have developed a new general relativistic magnetohydrodynamic code in Kerr geometry. Here we report on the first numerical…

Astrophysics · Physics 2009-10-31 Shinji Koide , David L. Meier , Kazunari Shibata , Takahiro Kudoh

The formation and large-scale propagation of Poynting-dominated jets produced by accreting, rapidly rotating black hole systems are studied by numerically integrating the general relativistic magnetohydrodynamic equations of motion to…

Astrophysics · Physics 2010-04-06 Jonathan C. McKinney

We have carried out 2D and 3D general relativistic magnetohydrodynamic simulations of jets launched self-consistently from accretion disks orbiting Kerr black holes and applied the results to the inner engine of the collapsar model of…

Astrophysics · Physics 2007-05-23 Jean-Pierre De Villiers , Jan Staff , Rachid Ouyed

In this paper we report the results of axisymmetric relativistic MHD simulations for the problem of Kerr black hole immersed into a rarefied plasma with ''uniform'' magnetic field. The long term solution shows properties which are…

Astrophysics · Physics 2009-11-10 S. S. Komissarov

The launch of relativistic jets of plasma on astrophysical to cosmological scales is observed in a variety of astrophysical sources, from active galactic nuclei to X-ray binaries. While these jets can be reproduced by general relativistic…

High Energy Astrophysical Phenomena · Physics 2026-03-03 Jibril Ben Achour , Ileyk El Mellah , Eric Gourgoulhon

The formation of relativistic astrophysical jets is presumably mediated by magnetic fields threading accretion disks and central, rapidly rotating objects. As it is accelerated by magnetic stresses, the jet's kinetic energy flux grows at…

Astrophysics · Physics 2009-11-10 Marek Sikora , Mitchell C. Begelman , Greg M. Madejski , Jean-Pierre Lasota

We present 3D-MHD AMR simulations of Poynting flux dominated (PFD) jets formed by injection of magnetic energy. We compare their evolution with a hydrodynamic jet which is formed by injecting kinetic energy with the same energy flux than…

Solar and Stellar Astrophysics · Physics 2011-11-07 Martín Huarte-Espinosa , Adam Frank , Eric G. Blackman

A brief summary is given of an alternative interpretation of the Event Horizon Telescope observations of the massive black hole in the nucleus of the nearby galaxy M87. It is proposed that the flow is primarily powered by the black hole…

High Energy Astrophysical Phenomena · Physics 2022-07-14 Roger Blandford , Noemie Globus

The basic features of the Poynting flux from the horizon and the ergosphere of a black hole and from the accreting flow onto a black hole are discussed for the force-free magnetosphere. The accretion flow dominated by the Poynting flux is…

Astrophysics · Physics 2007-05-23 Hyun Kyu Lee

We present 3D general relativistic magnetohydrodynamic(GRMHD) simulations of zero angular momentum accretion around a rapidly rotating black hole, modified by the presence of initially uniform magnetic fields. We consider serveral angles…

High Energy Astrophysical Phenomena · Physics 2021-02-17 Sean M. Ressler , Eliot Quataert , Christopher J. White , Omer Blaes

Black holes accreting well below the Eddington rate are believed to have geometrically thick, optically thin, rotationally supported accretion discs in which the Coulomb mean free path is large compared to $GM/c^2$. In such an environment,…

High Energy Astrophysical Phenomena · Physics 2016-01-25 Francois Foucart , Mani Chandra , Charles F. Gammie , Eliot Quataert

The origin of jets in young stellar objects (YSOs) remains a subject of active investigation. We present a 3D magnetohydrodynamic simulation of jet launching in YSOs, focusing on the interaction between the stellar magnetosphere and the…

Solar and Stellar Astrophysics · Physics 2026-02-17 Yisheng Tu , Zhi-Yun Li , Zhaohuan Zhu , Xiao Hu , Chun-Yen Hsu

We have performed several simulations of black hole systems (non-rotating, black hole spin parameter a=0.0 and rapidly rotating, a=0.95) with a geometrically thin Keplerian disk using the newly developed RAISHIN code. The simulation results…

Astrophysics · Physics 2007-05-23 Yosuke Mizuno , Ken-Ichi Nishikawa , Shinji Koide , Philip Hardee , Gerald J. Fishman

Relativistic, magnetized jets are observed to propagate to very large distances in many Active Galactic Nuclei (AGN). We use 3D relativistic MHD (RMHD) simulations to study the propagation of Poynting flux-driven jets in AGN. These jets are…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Xiaoyue Guan , Hui Li , Shengtai Li

Magnetized accretion onto spinning black holes can accumulate a large magnetic flux across the event horizon and launch a pair of relativistic jets via the Blandford-Znajek mechanism. In the magnetically saturated (arrested) state, excess…

High Energy Astrophysical Phenomena · Physics 2026-04-30 Krzysztof Nalewajko , Mateusz Kapusta , Bart Ripperda , Alexander A. Philippov
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