Magnetic reconnection enables higher energy extraction efficiency from singly-rotating five-dimensional Kerr black holes than from doubly-rotating ones and can exceed the Blandford-Znajek process in the single-rotation case.
Magnetic reconnection and energy extraction from a Konoplya–Zhidenko rotating non-Kerr black hole
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In a Kerr-Sen-like spacetime from Bumblebee gravity, increasing the Lorentz symmetry breaking rate and Bumblebee charge enlarges the allowed region for energy extraction via magnetic reconnection and moves it closer to the horizon, with peak efficiency when cosmic censorship is marginally violated.
Horizon-scale synchrotron images and polarization maps of Konoplya-Zhidenko black holes with thick disks show expanded photon rings, darker centers, and viewing-angle-dependent asymmetries that vary with the deformation parameter.
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Magnetic reconnection in five-dimensional Kerr black hole
Magnetic reconnection enables higher energy extraction efficiency from singly-rotating five-dimensional Kerr black holes than from doubly-rotating ones and can exceed the Blandford-Znajek process in the single-rotation case.
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Energy extraction from a rotating black hole via magnetic reconnection: Bumblebee gravity
In a Kerr-Sen-like spacetime from Bumblebee gravity, increasing the Lorentz symmetry breaking rate and Bumblebee charge enlarges the allowed region for energy extraction via magnetic reconnection and moves it closer to the horizon, with peak efficiency when cosmic censorship is marginally violated.
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Imaging and Polarimetric Signatures of Konoplya-Zhidenko Black Holes with Various Thick Disk
Horizon-scale synchrotron images and polarization maps of Konoplya-Zhidenko black holes with thick disks show expanded photon rings, darker centers, and viewing-angle-dependent asymmetries that vary with the deformation parameter.