Black holes in models with noncompact extra dimensions
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We have investigated the equations of geodesics for the black hole solution suggested in  in the Randall-Sundrum model with one brane. Being a generalization of the Schwarzschild metric, this solution has a structure like the Reissner-Nordström one, with the “tidal charge” replacing the electric charge. Following our investigation of the behavior of geodesics, we have shown that this solution is consistent with observational data, without predicting the appearance of any fundamentally new effects. A more accurate constraint on the tidal charge is obtained by analyzing circular orbits.
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