Rotating black hole with an anisotropic matter field as a particle accelerator

Rotating black hole with an anisotropic matter field as a particle accelerator

Recently, a generalised solution for Einstein equations for a rotating black hole, surrounded by matter field was proposed, which is the Kerr–Newman spacetime with an anisotropic matter [ Phys. Rev. D . 101 064067]. Due to the negative radial pressure of the anisotropic matter, the solution possesse...

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Veröffentlicht in:Classical and quantum gravity 2021-04, Vol.38 (7), p.75030
Hauptverfasser: Ahmed Rizwan, C L, Naveena Kumara, A, Hegde, Kartheek, Ali, Md Sabir, Ajith, K M
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container_issue 7
container_start_page 75030
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creator Ahmed Rizwan, C L
Naveena Kumara, A
Hegde, Kartheek
Ali, Md Sabir
Ajith, K M
description Recently, a generalised solution for Einstein equations for a rotating black hole, surrounded by matter field was proposed, which is the Kerr–Newman spacetime with an anisotropic matter [ Phys. Rev. D . 101 064067]. Due to the negative radial pressure of the anisotropic matter, the solution possesses an additional hair along with the conventional mass, charge and spin. In this article we show that, this new class of black holes can act as a cosmic particle accelerator during the collision of two generic particles in its gravitational field in the ergo-region. The centre of mass energy of the particles shoots to an arbitrary high value in the vicinity of the event horizon for the extremal black hole. The physical conditions for the collision to take place are obtained by studying the horizon structure and circular particle motion. The results obtained are interesting from an astrophysical perspective.
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