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Energy Extraction via Magnetic Reconnection in Lorentz breaking Kerr-Sen and Kiselev Black Holes

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arxiv 2206.12988 v1 pith:5SWPHKZM submitted 2022-06-26 gr-qc astro-ph.HE

Amodio Carleo , Gaetano Lambiase , Leonardo Mastrototaro This is my paper · ORCID
classification gr-qcastro-ph.HE
keywords blackenergyholesmagneticextractionkerrkerr-senmechanism
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abstract

Black holes can accumulate a large amount of energy, responsible for highly energetic astrophysical phenomena Recently, fast magnetic reconnection (MR) of the magnetic field was proposed as a new way to extract energy and in this paper, we investigate this phenomena in a bumblebee Kerr-Sen BH. We find that the presence of the charge parameter strongly changes the simple Kerr case, making this extraction mechanism possible even for not extremely rotating black holes ($a \sim 0.7$). We also show that, under appropriate circumstances, MR is more efficient compared to the Blandford-Znajek mechanism. We finally compare these results with quintessence black-hole solutions not finding and enhancement respect to Kerr solution.

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Cited by 1 Pith paper

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  1. Extending the Comisso-Asenjo Energy Extraction Mechanism to Pure Lovelock Gravity

    gr-qc 2026-07 conditional novelty 4.0 of 10

    For rotating pure Lovelock black holes in 6–9 dimensions, magnetic reconnection extracts more rotational energy as dimension grows, with the 9-dimensional case most efficient and sometimes outpacing the Blandford-Znaj...

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