Generating dyonic solutions in 5D Einstein-dilaton gravity with antisymmetric forms and dyonic black rings

Abstract

We consider 5-dimensional Einstein-dilaton gravity with antisymmetric forms. Assuming staticity and a restriction on the dilaton coupling parameters, we derive 4-dimensional sigma-model with a target space $SL(2,R)/SO(1,1)\times SL(2,R)/SO(1,1)$. On this basis, using the symmetries of the target space, we develop a solution generating technique and employ it to construct new asymptotically flat and non-flat dyonic black rings solutions. The solutions are analyzed and the basic physical quantities are calculated.

14 pages, LaTeX; v2 references and comments added, typos corrected; v3 title changed, comments and references added; PRD