Gravitational lensing by Einstein-Born-Infeld black holes

Details Gravitational lensing by Einstein-Born-Infeld black holes Gravitational lensing by Einstein-Born-Infeld black holes

2005-11-12

arxiv.org/abs/gr-qc/0511065v2

Phys.Rev. D73 (2006) 043002

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

16 pages, 4 figures; v2: extended and improved, new references added. Accepted for publication in Physical Review D

Scientific paper

10.1103/PhysRevD.73.043002

In this paper, charged black holes in general relativity coupled to Born-Infeld electrodynamics are studied as gravitational lenses. The positions and magnifications of the relativistic images are obtained using the strong deflection limit, and the results are compared with those corresponding to a Reissner-Nordstrom black hole with the same mass and charge. As numerical examples, the model is applied to the supermassive Galactic center black hole and to a small size black hole situated in the Galactic halo.

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