Stationary Dyonic regular and black hole solutions |
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Authors: | Burkhard Kleihaus Jutta Kunz Francisco Navarro-Lérida Ulrike Neemann |
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Affiliation: | 1.ZARM,Universit?t Bremen,Bremen,Germany;2.Institut für Physik,Universit?t Oldenburg,Oldenburg,Germany |
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Abstract: | We consider globally regular and black hole solutions in SU(2) Einstein–Yang–Mills–Higgs theory, coupled to a dilaton field. The basic solutions represent magnetic monopoles, monopole–antimonopole systems or black holes with monopole or dipole hair. When the globally regular solutions carry additionally electric charge, an angular momentum density results, except in the simplest spherically symmetric case. We evaluate the global charges of the solutions and their effective action, and analyze their dependence on the gravitational coupling strength. We show, that in the presence of a dilaton field, the black hole solutions satisfy a generalized Smarr type mass formula. B. Kleihaus gratefully acknowledges support by the German Aerospace Center. F. Navarro-Lérida gratefully acknowledges support by the Ministerio de Educación y Ciencia under grant EX2005-0078. |
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Keywords: | General relativity Mass formula Electric charge Angular momentum Black holes |
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