Chaos grows with energy, magnetic field, and the MOG parameter, and shrinks with spin and angular momentum, for a charged particle in a magnetized Kerr-MOG black hole.
Blandford-Znajek jets in MOdified Gravity
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abstract
General relativity (GR) will be imminently challenged by upcoming experiments in the strong gravity regime, including those testing the energy extraction mechanisms for black holes. Motivated by this, we explore magnetospheric models and black hole jet emissions in MOdified Gravity (MOG) scenarios. Specifically, we construct new power emitting magnetospheres in a Kerr-MOG background which are found to depend non-trivially on the MOG deformation parameter. This may allow for high-precision tests of GR. In addition, a complete set of analytic solutions for vacuum magnetic field configurations around static MOG black holes are explicitly derived, and found to comprise exclusively Heun polynomials.
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gr-qc 1years
2024 1verdicts
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Chaotic motion of the charged test particle in a Kerr-MOG black hole with explicit symplectic algorithms
Chaos grows with energy, magnetic field, and the MOG parameter, and shrinks with spin and angular momentum, for a charged particle in a magnetized Kerr-MOG black hole.