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Type: Artigo de periódico
Title: Interpolating Black Holes In Dilaton-axion Gravity
Author: Gal'tsov D.V.
Letelier P.S.
Abstract: A 2p + 5 parametric family of black holes is constructed in dilaton-axion gravity with p vector fields using a holomorphic representation of U-duality in three dimensions. The metric of the non-extremal black holes has a Reissner-Nordström-type structure and generically possesses an internal horizon. However, in the extremal limit the generic solution exhibits a dilatonic-type null singularity. The solution thus interpolates between the well known Reissner-Nordström and charged dilatonic spacetimes. Only in the case of the orthogonal electric and magnetic charges (if p > 1) may the extremal solution have a non-singular event horizon.
Rights: fechado
Identifier DOI: 10.1088/0264-9381/14/1/002
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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