The strong field gravitational lensing in the Schwarzschild black hole pierced by a cosmic string

Details The strong field gravitational lensing in the Schwarzschild black hole pierced by a cosmic string The strong field gravitational lensing in the Schwarzschild black hole pierced by a cosmic string

2010-10-12

arxiv.org/abs/1010.2308v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 4 figures

Scientific paper

In this work the gravitational lensing in the strong field limit around the Schwarzschild black hole pierced by a cosmic string is studied. We find the angular position and magnification of the relativistic images depending on the tension of cosmic string. It is interesting that the angular separation $s$ increases and the relative magnification $r$ decreases when the tension of string is greater. It is also interesting that the deflection angle is greater when the tension of cosmic string is stronger.

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