Blandford-Znajek jets in MOdified Gravity

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.

33 pages, 7 figure; v2: matches published version in JCAP

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Cited by in corpus (4)

• Kerr-MOG-(A)dS black hole and its shadow in scalar-tensor-vector gravity theory
• Magnetic field geometry in rotating wormhole spacetimes
• Universality of the Blandford-Znajek emission in stationary and axisymmetric spacetimes
• FPIC: a new Particle-In-Cell code for stationary and axisymmetric black-hole spacetimes