Autoparallel orbits in Kerr Brans-Dicke spacetimes
arXiv:gr-qc/0311080 · doi:10.1142/S0218271804004487
Abstract
The bounded orbital motion of a massive spinless test particle in the background of a Kerr Brans-Dicke geometry is analysed in terms of worldlines that are auto-parallels of different metric compatible spacetime connections. In one case the connection is that of Levi-Civita with zero-torsion. In the second case the connection has torsion determined by the gradient of the Brans-Dicke background scalar field. The calculations permit in principle to discriminate between these possibilities.
14 pages. LATEX file. To appear in Int. J. Mod. Phys. D