Circular motion of neutral test particles in Reissner-Nordström spacetime
- D. Pugliese(,)
- Rome U. and
- ICRA, Rome
- H. Quevedo(,)
- Rome U. and
- ICRA, Rome
- R. Ruffini()
- Rome U. and
- ICRA, Rome
Citations per year
Abstract: (arXiv)
We investigate the motion of neutral test particles in the gravitational field of a mass with charge described by the Reissner-Nordstr\'om (RN) spacetime. We focus on the study of circular stable and unstable orbits around configurations describing either black holes or naked singularities. We show that at the classical radius, defined as , there exist orbits with zero angular momentum due to the presence of repulsive gravity. The analysis of the stability of circular orbits indicates that black holes are characterized by a continuous region of stability. In the case of naked singularities, the region of stability can split into two non-connected regions inside which test particles move along stable circular orbits.- 04.20.-q
- 04.70.Bw
- 04.40.Dg
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