Geodesics and Geodesic Deviation in static Charged Black Holes
Abstract
The radial motion along null geodesics in static charged black hole space-times, in particular, the Reissner-Nordstr\"om and stringy charged black holes are studied. We analyzed the properties of the effective potential. The circular photon orbits in these space-times are investigated. We found that the radius of circular photon orbits in both charged black holes are different and differ from that given in Schwarzschild space-time. We studied the physical effects of the gravitational field between two test particles in stringy charged black hole and compared the results with that given in Schwarzschild and Reissner-Nordstr\"om black holes.
Keywords
Cite
@article{arxiv.0708.2841,
title = {Geodesics and Geodesic Deviation in static Charged Black Holes},
author = {Ragab M. Gad},
journal= {arXiv preprint arXiv:0708.2841},
year = {2015}
}
Comments
12 pages, 5 figures, small changes, figures and references added, conclusions changed. A improved, version accepted in Astrophysics and Space Science