Abstract
We investigate the geodesic motions of a massive particle and a light ray in the hyperplane orthogonal to the symmetry axis in the 5-dimensional hypercylindrical spacetime. The class of the solutions depends on one constant a, which is the ratio of the string mass density to the tension. There exist unstable orbits in a null geodesic only in some range of a. The innermost stable circular orbits in a timelike geodesic also exist only in a certain range of the parameter a. The capture cross-section and the deflection angle of a light ray are also computed.
Original language | English |
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Pages (from-to) | 2202-2211 |
Number of pages | 10 |
Journal | Journal of the Korean Physical Society |
Volume | 54 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2009 |
Keywords
- Geodesics
- Null
- Timelike