2024
DOI: 10.1140/epjc/s10052-024-12804-8
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Electromagnetic field and chaotic charged-particle motion around hairy black holes in Horndeski gravity

Wenfu Cao,
Xin Wu,
Jun Lyu

Abstract: The Wald vector potential is an exact solution of the source-less Maxwell equations regarding an electromagnetic field of a vacuum uncharged black hole like the Kerr background black hole in an asymptotically uniform magnetic field. However, it is not if the black hole is a nonvacuum solution in a theory of modified gravity with extra fields or a charged Kerr–Newman spacetime. To satisfy the source-less Maxwell equations in this case, the Wald vector potential must be modified and generalized appropriately. Fo… Show more

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Cited by 5 publications
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