STATIONARY SOLUTIONS OF N=2 SUPERGRAVITY

We discuss general bosonic stationary configurations of N = 2, D = 4 s upergravity coupled to vector multiplets. The requirement of unbroken supersymmetries imposes constraints on the holomorphic symplectic sect ion of the underlying special Kahler manifold. The corresponding solut ions of the field equations are completely determined by a set of harm onic functions. As examples we discuss rotating black holes, Taub-NUT and Eguchi-Hanson-like instantons for the STU model In addition, we di scuss, in the static limit, world-sheet instanton corrections to the S TU black hole solution, in the neighborhood of a vanishing 4-cycle of the Calabi-Yau manifold. Our procedure is quite general and includes a ll known black hole solutions that can be embedded into N = 2 supergra vity. (C) 1998 Elsevier Science B.V.