Light Deflection by a Rotating Global Monopole Spacetime
General Relativity and Quantum Cosmology
2017-05-17 v2
Abstract
We investigate the deflection of light by a rotating global monopole spacetime and a rotating Letelier spacetime in the weak deflection approximation. To this end, we apply the Gauss-Bonnet theorem to the corresponding osculating optical geometries and show that the deflection of light increases due to the presence of the global monopole parameter and the string cloud parameter, respectively. The results obtained for the deflection angle in the equatorial plane generalize known results for the corresponding non-rotating global monopole and Letelier spacetimes as well as the Kerr solution.
Cite
@article{arxiv.1702.05600,
title = {Light Deflection by a Rotating Global Monopole Spacetime},
author = {Kimet Jusufi and Marcus C. Werner and Ayan Banerjee and Ali Övgün},
journal= {arXiv preprint arXiv:1702.05600},
year = {2017}
}
Comments
10 pages, accepted by Phys. Rev. D