energy extraction from a konoplya–zhidenko rotating non-kerr black hole

energy extraction from a konoplya–zhidenko rotating non-kerr black hole

;Fen Long;Songbai Chen;Shangyun Wang;Jiliang Jing
biology and fertility of soils 2018 Vol. 926 pp. 83-94
132
long2018nuclearenergy

Abstract

We have investigated the properties of the ergosphere and the energy extraction by Penrose process in a Konoplya–Zhidenko rotating non-Kerr black hole spacetime. We find that the ergosphere becomes thin and the maximum efficiency of energy extraction decreases as the deformation parameter increases. For the case with aM, we find that the maximum efficiency can reach so high that it is almost unlimited as the positive deformation parameter is close to zero, which is a new feature of energy extraction in such kind of rotating non-Kerr black hole spacetime.

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217403
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10.1016/j.nuclphysb.2017.10.028
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