Energetics and optical properties of 6-dimensional rotating black hole in pure Gauss–Bonnet gravity

@article{Abdujabbarov2015EnergeticsAO,
title={Energetics and optical properties of 6-dimensional rotating black hole in pure Gauss–Bonnet gravity},
author={Ahmadjon Abdujabbarov and Farruh Atamurotov and Naresh Dadhich and Bobomurat J. Ahmedov and Zdeněk Stuchl{\'i}k},
journal={The European Physical Journal C},
year={2015},
volume={75},
pages={1-11}
}
• Published 3 August 2015
• Physics
• The European Physical Journal C
We study physical processes around a rotating black hole in pure Gauss–Bonnet (GB) gravity. In pure GB gravity, the gravitational potential has a slower fall-off as compared to the corresponding Einstein potential in the same dimension. It is therefore expected that the energetics of a pure GB black hole would be weaker, and our analysis bears out that the efficiency of energy extraction by the Penroseprocess is increased to 25.8 % and the particle acceleration is increased to 55.28 %; the…

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References

SHOWING 1-10 OF 42 REFERENCES

Particle and light motion in a space-time of a five-dimensional rotating black hole

• Physics
• 2003
We study motion of particles and light in a space-time of a 5-dimensional rotating black hole. We demonstrate that the Myers-Perry metric describing such a black hole in addition to three Killing

Shadow of rotating non-Kerr black hole

• Physics
• 2013
The shadow of a rotating non-Kerr black hole has been studied, and it was shown that in addition to the specific angular momentum a, the deformation parameter of non-Kerr spacetime essentially

Shadow of a rotating braneworld black hole

• Physics
• 2012
We investigate the shadow cast by a rotating braneworld black hole, in the Randall-Sundrum scenario. In addition to the angular momentum, the tidal charge term deforms the shape of the shadow. For a

Null geodesics and shadow of a rotating black hole in extended Chern-Simons modified gravity

• Physics
• 2010
The Chern-Simons modification to general relativity in four dimensions consists of adding to the Einstein-Hilbert term a scalar field that couples to the first-class Pontryagin density. In this

CAUSAL EXTRACTION OF BLACK HOLE ROTATIONAL ENERGY BY VARIOUS KINDS OF ELECTROMAGNETIC FIELDS

• Physics
• 2014
Recent general relativistic magnetohydrodynamics (MHD) simulations have suggested that relativistic jets from active galactic nuclei (AGNs) have been powered by the rotational energy of central black

Shadow of five-dimensional rotating Myers-Perry black hole

• Physics
• 2014
A black hole casts a shadow as an optical appearance because of its strong gravitational field. We study the shadow cast by the five-dimensional Myers-Perry black hole with equal rotation parameters.

Kerr black holes as particle accelerators to arbitrarily high energy.

• Physics
Physical review letters
• 2009
We show that intermediate mass black holes conjectured to be the early precursors of supermassive black holes and surrounded by relic cold dark matter density spikes can act as particle accelerators

On the Gauss-Bonnet Gravity

We argue that propagation of gravitational field in the extra dimension is motivated by physical realization of second iteration of self interaction of gravity and it is described by the Gauss-Bonnet

Revival of the Penrose process for astrophysical applications

• Physics
• 1985
By utilizing the curious existence of negative energy orbits outside the event horizon of the Kerr black hole, Penrose proposed that rotational energy of the black hole can be extracted. It was