The geodesic motion on generalized Taub-NUT gravitational instantons |
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Authors: | Mihai Visinescu |
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Institution: | 1. Department of Theoretical Physics, Institute of Atomic Physics, Magurele, P.O. Box MG-6, Bucharest, Romania
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Abstract: | A class of generalized Taub-NUT gravitational instantons is reported in five-dimensional Einstein gravity coupled to a non-linear sigma model. The geodesic dynamics of a spinless particle of unit mass on these static gravitational instantons is studied. This is accomplished by finding a generalized Runge-Lenz vector. Unlike the Kepler problem, or, the dynamics of a spinless particle on the familiar Taub-NUT gravitational instantons, the orbits are not conic sections. |
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