A new solution for dilaton-Maxwell gravity |
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Authors: | Slava G. Turyshev |
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Affiliation: | (1) Jet Propulsion Laboratory, California Institute of Technology, 91109 Pasadena, California, USA |
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Abstract: | An interesting static spherically symmetric solution corresponding to Einstein-Maxwell gravity coupled to a dilaton field with negative kinetic term has been obtained. This solution is characterized by the set of two arbitrary parameters, the physical mass0 and electric chargeQ. It has two horizons on which the metric, scalar curvature and both dilaton and electromagnetic fields are regular. Another feature of this solution is that the physical mass is bounded by the electric charge as02¦Q¦ (unlike the Reisner-Nordström solution for which0>-¦Q¦). The structure of the scalar curvature has been analyzed.On leave from: Bogolyubov Institute for Theoretical Microphysics, Moscow State University, 119899 Moscow, Russia |
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