Scalar-tensor black holes coupled to Born-Infeld nonlinear electrodynamics

Journal Article · Sun Apr 15 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.084036· OSTI ID:21020405

Stefanov, Ivan Zh; Yazadjiev, Stoytcho S; Todorov, Michail D ^[1]

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1. Department of Theoretical Physics, Faculty of Physics, St. Kliment Ohridski University of Sofia, 5, James Bourchier Blvd., 1164 Sofia (Bulgaria)

The nonexistence of asymptotically flat, neutral black holes and asymptotically flat, charged black holes in the Maxwell electrodynamics, with a nontrivial scalar field has been proved for a large class of scalar-tensor theories. The no-scalar-hair theorems, however, do not apply in the case of nonlinear electrodynamics. In the present work numerical solutions describing charged black holes coupled to Born-Infeld type nonlinear electrodynamics in scalar-tensor theories of gravity with massless scalar field are found. The causal structure and properties of the solutions are studied, and a comparison between these solutions and the corresponding solutions in the general relativity is made. The presence of the scalar field leads to a much more simple causal structure. The present class of black holes has a single, nondegenerate horizon, i.e., its causal structure resembles that of the Schwarzschild black hole.

• OSTI ID: 21020405
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 75; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BLACK HOLES
BORN-INFELD THEORY
COMPARATIVE EVALUATIONS
COSMOLOGY
ELECTRODYNAMICS
GENERAL RELATIVITY THEORY
GRAVITATION
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
SCALAR FIELDS
SCALARS
SCHWARZSCHILD METRIC
TENSORS