Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2005-07-07
Class.Quant.Grav. 22 (2005) 3803-3814
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
8 figures, 14 pages. LaTeX w/ subfigure, graphicx
Scientific paper
We explore some of the gravitational features of a uniform ring both in the Newtonian potential theory and in General Relativity. We use a spacetime associated to a Weyl static solution of the vacuum Einstein's equations with ring like singularity. The Newtonian motion for a test particle in the gravitational field of the ring is studied and compared with the corresponding geodesic motion in the given spacetime. We have found a relativistic peculiar attraction: free falling particle geodesics are lead to the inner rim but never hit the ring.
D'Afonseca L. A.
Letelier Patricio S.
Oliveira Samuel R.
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