Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2009-12-12
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
16 pages, 8 figures, submitted to General Relativity and Gravitation, presented at the II Italian-Pakistani Workshop on Relati
Scientific paper
10.1007/s10714-010-1007-3
A class of static, vacuum solutions of (free-electromagnetic) Kaluza-Klein equations with three-dimensional spherical symmetry is studied. In order to explore the dynamic in such spacetimes, geodesic equations are obtained and the effective potential for massive test particles is analysed. Particular attention is devoted to the properties of the four dimensional counterpart of these solutions in their Schwarzschild limit. A modification of the circular stable orbits compared with the Schwarzschild case is investigated.
Lacquaniti Valentino
Montani Giovanni
Pugliese Daniela
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