Null Geodesics and Strong Field Gravitational Lensing in a String Cloud Background

This paper is devoted to studying two interesting issues of a black hole with string cloud background. Firstly, we investigate null geodesics and find unstable orbital motion of particles. Secondly, we calculate deflection angle in strong field limit. We then find positions, magnifications, and obse...

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Bibliographic Details
Main Authors: M. Sharif, Sehrish Iftikhar
Format: Article
Language:English
Published: Hindawi Limited 2015-01-01
Series:Advances in High Energy Physics
Online Access:http://dx.doi.org/10.1155/2015/635625