Constraining the electric charges of some astronomical bodies in Reissner-Nordstrom spacetimes and generic r-2-type power-law potentials from orbital motions
Abstract
We put model-independent, dynamical constraints on the net electric charge Q of some astronomical and astrophysical objects by assuming that their exterior spacetimes are described by the Reissner-Nordstroem metric, which induces an additional potential URN Q2 r-2. Our results extend to other hypothetical power-law interactions inducing extra-potentials Upert = r-2 as well (abridged).
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