Strong gravitational lensing in a squashed Kaluza-Klein black hole spacetime

Details Strong gravitational lensing in a squashed Kaluza-Klein black hole spacetime Strong gravitational lensing in a squashed Kaluza-Klein black hole spacetime

2010-03-07

arxiv.org/abs/1003.1429v2

Phys.Rev.D81:124017,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13pages, 5 figures, Final version appeared in PRD

Scientific paper

We investigate the strong gravitational lensing in a Kaluza-Klein black hole with squashed horizons. We find the size of the extra dimension imprints in the radius of the photon sphere, the deflection angle, the angular position and magnification of the relativistic images. Supposing that the gravitational field of the supermassive central object of the Galaxy can be described by this metric, we estimated the numerical values of the coefficients and observables for gravitational lensing in the strong field limit.

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