Motion of charged particles around a magnetized/electrified black hole
arXiv:1502.00722 · doi:10.1103/PhysRevD.91.024048
Abstract
Geodesic equations of timelike and null charged particles in the Ernst metric are studied. We consider two distinct forms of the Ernst solution where the Maxwell potential represents either a uniform electric or magnetic field. Circular orbits in various configurations are considered, as well as their perturbations and stability. We find that the electric field strength must be below a certain charge-dependent critical value for these orbits to be stable. The case of the magnetic Ernst metric contains a limit which reduces to the Melvin magnetic universe. In this case the equations of motion are solved to reveal cycloidlike or trochoidlike motion, similar to those found by Frolov and Shoom around black holes immersed in test magnetic fields.
arXiv comment28 pages, 12 figures
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- Orbital widening due to radiation reaction around a magnetized black hole
- Redshift of light emitted by particles orbiting a black hole immersed in a strong magnetic field
- Corrected thermodynamics of nonlinear magnetic-charged black hole surrounded by perfect fluid dark matter
- Hypocycloid motion in the Melvin magnetic universe
- Perihelion advance and trajectory of charged test particles in Reissner-Nordstrom field via the higher-order geodesic deviations
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- Classification of the trajectories of uncharged particles in the Schwarzschild-Melvin metric
- Geodesic structure of a noncommutative black hole