Electrically charged matter in rigid rotation around magnetized black hole
arXiv:1409.0418 · doi:10.1103/PhysRevD.90.044029
Abstract
We study charged-fluid toroidal structures surrounding a non-rotating charged black hole immersed in a large-scale, asymptotically uniform magnetic field. In continuation of our former study on electrically charged matter in approximation of zero conductivity, we demonstrate existence of orbiting structures in permanent rigid rotation in the equatorial plane, and charged clouds hovering near the symmetry axis. We constrain the range of parameters that allow stable configurations and derive the geometrical shape of equi-pressure surfaces. Our simplified analytical study suggests that these regions of stability may be relevant for trapping electrically charged particles and dust grains in some areas of the black hole magnetosphere, being thus important in some astrophysical situations.
14 pages, 5 figures
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Cited by in corpus (3)
- Oblique magnetic fields and the role of frame dragging near rotating black hole
- Equilibrium configuration of perfect fluid orbiting around black holes in some classes of alternative gravity theories
- Electrically charged matter in permanent rotation around magnetized black hole: A toy model for self-gravitating fluid tori