Strong Field Gravitational Lensing in a Magnetic Charged Reissner-Nordström Black Hole Pierced by a Cosmic String

Research paper by Juan Deng

Indexed on: 08 Dec '11Published on: 08 Dec '11Published in: International Journal of Theoretical Physics


The principal focus of this paper is to study the strong field gravitational lensing in a magnetic charged Reissner-Nordström black hole based on the method of cosmic string. We obtain the new coefficients including the tension of the cosmic strings, the strong field deflection limit coefficients, the deflection angle and the magnification, and obtain the relationship between the cosmic string parameter and the new coefficients. The result shows that the cosmic strings have some important effect on the gravitational lensing in a black hole when they pierce it.