Flux ropes in SANE disks
Miljenko \v{C}emelji\'c, Feng Yuan, Hai Yang
TL;DR
This paper uses 3D GRMHD simulations to study flux rope formation and release in SANE accretion disks around supermassive black holes, revealing the dynamics of magnetic structures in such environments.
Contribution
It presents the first detailed simulation-based analysis of flux rope formation and ejection in SANE accretion flows around black holes.
Findings
Flux ropes form atop the accretion disk.
Flux ropes are released into the corona.
Magnetic field configurations influence flux rope dynamics.
Abstract
Three-dimensional numerical simulations of a hot accretion flow around a supermassive black hole are performed using the general relativity magneto-hydrodynamic (GRMHD) code Athena++. We focus on the case of SANE, with the initial magnetic field consisting of multiple loops with oppositely directed poloidal magnetic field in the torus. Using the simulation data, we investigate the formation of flux ropes, follow the forming of flux ropes atop the disk, and their release into corona.
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Taxonomy
TopicsAstrophysical Phenomena and Observations · Astrophysics and Cosmic Phenomena · Pulsars and Gravitational Waves Research