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Static Orbits in Rotating Spacetimes (1711.05191v2)
Published 14 Nov 2017 in gr-qc
Abstract: We show that under certain conditions an axisymmetric rotating spacetime contains a ring of points in the equatorial plane, where a particle at rest with respect to an asymptotic static observer remains at rest in a static orbit. We illustrate the emergence of such orbits for boson stars. Further examples are wormholes, hairy black holes and Kerr-Newman solutions.
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