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arXiv · 2206.12988

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

Amodio Carleo·Gaetano Lambiase·Leonardo Mastrototaro
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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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Amodio Carleo, Gaetano Lambiase, Leonardo Mastrototaro. 2022-06-26. Energy Extraction via Magnetic Reconnection in Lorentz breaking Kerr-Sen and Kiselev Black Holes. https://doi.org/10.1140/epjc%2Fs10052-022-10751-w

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