Strong Gravitational Lensing in a Brane-World Black Hole
arXiv:1506.08410 · doi:10.1007/s10773-015-2545-y
Abstract
Adopting the strong field limit approach, we investigated the strong gravitational lensing in a Brane-World black hole, which means that the strong field limit coefficients and the deflection angle in this gravitational field are obtained. With this result, it can be said with certainly that the strong gravitational lensing is related to the metric of gravitational fields closely, the cosmology parameter α and the dark matter parameter \b{eta} come from the Brane-World black hole exerts a great influence on it. Comparing with the Schwarzschild-AdS spacetime and the Schwarzschild-XCMD spacetime, the parameters α, \b{eta} of black holes have the similar effects on the gravitational lensing. In some way, we infer that the real gravitational fields in our universe can be described by this metric, so the results of the strong gravitational lensing in this spacetime will be more reasonable for us to observe. Finally, it has to be noticed that the influence which the parameters α, \b{eta} exerted on the main observable quantities of this gravitational field is discussed.
12 pages. Accepted by International Journal of Theoretical Physics
References in corpus (9)
- A direct empirical proof of the existence of dark matter
- Relativistic images of Schwarzschild black hole lensing
- Gravitational Lensing by Wormholes
- Kerr black hole lensing for generic observers in the strong deflection limit
- Strong deflection limit of black hole gravitational lensing with arbitrary source distances
- Braneworld black hole gravitational lens: Strong field limit analysis
- Kerr-Sen dilaton-axion black hole lensing in the strong deflection limit
- Gravitational Lensing by Rotating Naked Singularities
- Strong Gravitational Lensing by Schwarzschild Black Holes