Influence of test charge and uniform magnetic field on charged fluid equilibrium structures

authored by: Audrey Trova, Eva Hackmann, Vladimír Karas, Kris Schroven, Jiří Kovář, Petr Slaný
Abstract: Equilibrium configurations of a circling electrically charged fluid surrounding a central static black hole endowed with a test electric charge and embedded in a large-scale asymptotically uniform magnetic field are presented. Various configurations of the fluid are influenced by the balance between the gravitational and electromagnetic actions; previous studies of the circling charged fluid configurations around a rotating black hole showed a strong dependence on the spin of the black hole. In this work, we focus on configurations centered in the equatorial plane taking shapes of single or double toroidal structures. Our interest is the existence of these structures, and how various actions, such as electromagnetic, gravitational and centrifugal, influence their shapes and physics.
External Organisation(s): University of Bremen
Czech Academy of Sciences (CAS)
Silesian University in Opava
Type: Article
Journal: Physical Review D
Volume: 101
ISSN: 2470-0010
Publication date: 22.04.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy (miscellaneous)
Electronic version(s): https://doi.org/10.1103/physrevd.101.083027 (Access: Closed)

BibTeX

@article{85f66c3b74154a75bac9045b9aaa044c,
title = "Influence of test charge and uniform magnetic field on charged fluid equilibrium structures",
abstract = "Equilibrium configurations of a circling electrically charged fluid surrounding a central static black hole endowed with a test electric charge and embedded in a large-scale asymptotically uniform magnetic field are presented. Various configurations of the fluid are influenced by the balance between the gravitational and electromagnetic actions; previous studies of the circling charged fluid configurations around a rotating black hole showed a strong dependence on the spin of the black hole. In this work, we focus on configurations centered in the equatorial plane taking shapes of single or double toroidal structures. Our interest is the existence of these structures, and how various actions, such as electromagnetic, gravitational and centrifugal, influence their shapes and physics.",
author = "Audrey Trova and Eva Hackmann and Vladim{\'i}r Karas and Kris Schroven and Ji{\v r}{\'i} Kov{\'a}{\v r} and Petr Slan{\'y}",
note = "Funding information: A. T. and E. H. acknowledge support from the Research Training Group 1620 “Models of Gravity” funded by the German Science Foundation DFG. E. H. is also grateful for support from the DFG funded Center of Excellence EXC 2123 “QuantumFrontiers.” V. K., K. S. and J. K. acknowledge Czech Science Foundation collaboration project (GA?R 19-01137J). J. K. and P. S. would like to express their acknowledgment for the support of the Research Centre for Theoretical Physics and Astrophysics, Institute of Physics, Silesian University in Opava.",
year = "2020",
month = apr,
day = "22",
doi = "10.1103/physrevd.101.083027",
language = "English",
volume = "101",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Institute of Physics",
number = "8",
}