Recent work has questioned whether nature can extract the rotational energy of a black hole via electromagnetic fields. Although we show that the Blandford–Znajek effect is sound, the deeper physics of the electric nature of black holes remains unresolved.
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Acknowledgements
C.B.S. is supported by the National Natural Science Foundation of China (grant no. 12073021).
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Peer review information Nature Astronomy thanks Serguei Komissarov and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.
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Garofalo, D., Singh, C.B. The astrophysics of rotational energy extraction from a black hole. Nat Astron 5, 1086–1088 (2021). https://doi.org/10.1038/s41550-021-01527-5
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DOI: https://doi.org/10.1038/s41550-021-01527-5
