Circular Orbits in Einstein-Gauss-Bonnet Gravity
arXiv:0810.1177 · doi:10.1103/PhysRevD.78.084038
Abstract
The stability under radial and vertical perturbations of circular orbits associated to particles orbiting a spherically symmetric center of attraction is study in the context of the n-dimensional: Newtonian theory of gravitation, Einstein's general relativity, and Einstein-Gauss-Bonnet theory of gravitation. The presence of a cosmological constant is also considered. We find that this constant as well as the Gauss-Bonnet coupling constant are crucial to have stability for .
11 pages, 4 figs, RevTex, Phys. Rev. D, in press