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Generalized Near Horizon Extreme Binary Black Hole Geometry

MPS-Authors
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Hadar,  Shahar
Gravitation and Black Hole Theory, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Rodriguez,  Maria J.
Gravitation and Black Hole Theory, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

1906.07203.pdf
(Preprint), 802KB

PhysRevD.100.044033.pdf
(Publisher version), 535KB

Supplementary Material (public)
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Citation

Ciafre, J., Hadar, S., Rickenbach, E., & Rodriguez, M. J. (2019). Generalized Near Horizon Extreme Binary Black Hole Geometry. Physical Review D, 100(4): 044033. doi:10.1103/PhysRevD.100.044033.


Cite as: http://hdl.handle.net/21.11116/0000-0003-FDDE-7
Abstract
We present a new vacuum solution of Einstein's equations describing the near horizon region of two neutral, extreme (zero-temperature), co-rotating, non-identical Kerr black holes. The metric is stationary, asymptotically near horizon extremal Kerr (NHEK), and contains a localized massless strut along the symmetry axis between the black holes. In the deep infrared, it flows to two separate throats which we call "pierced-NHEK" geometries: each throat is NHEK pierced by a conical singularity. We find that in spite of the presence of the strut for the pierced-NHEK geometries the isometry group SL(2,R)xU(1) is restored. We find the physical parameters and entropy.