Electrically Charged Cold Black Holes in Scalar-Tensor Theories
arXiv:gr-qc/9903028 · doi:10.1142/S0218271899000341
Abstract
We study the possible existence of charged and neutral black holes in the Bergmann-Wagoner class of scalar-tensor theories (STT) of gravity in four dimensions. The existence of black holes is shown for anomalous versions of these theories, with a negative kinetic term in the Lagrangian. The Hawking temperature of these holes is zero, while the horizon area is (in most cases) infinite. As a special case, the Brans-Dicke theory is studied in more detail, and two kinds of infinite-area black holes are revealed, with finite and infinite proper time needed for an infalling particle to reach the horizon; among them, analyticity properties select a discrete subfamily of solutions, parametrized by two integers, which admit an extension beyond the horizon. The causal structure and stability of these solutions with respect to small radial perturbations is discussed. As a by-product, the stability properties of all spherically symmetric electrovacuum STT solutions are outlined.
17 pages, Latex2e, 3 Latex figures with bezier.sty
References in corpus (4)
Cited by in corpus (23)
- Regular black holes and black universes
- Notes on wormhole existence in scalar-tensor and F(R) gravity
- Phantom Black Holes in Einstein-Maxwell-Dilaton Theory
- Black hole entropy in scalar-tensor and f(R) gravity: an overview
- Phantom Black Holes and Sigma Models
- Cold black holes and conformal continuations
- Spherical inhomogeneous solutions of Einstein and scalar-tensor gravity: a map of the land
- Spherically symmetric black holes and wormholes in hybrid metric-Palatini gravity
- A Star Harbouring a Wormhole at its Core
- Hybrid metric-Palatini gravity: black holes, wormholes, singularities and instabilities
- Revisiting the analogue of the Jebsen-Birkhoff theorem in Brans-Dicke gravity
- Magnetic wormholes and black universes with invisible ghosts
- On Stationary Axially Symmetric Solutions in Brans-Dicke Theory
- Spherically symmetric space-times in generalized hybrid metric-Palatini gravity
- On Black Hole Structures in Scalar-Tensor Theories of Gravity
- Quasilocal mass in scalar-tensor gravity: spherical symmetry
- Novel Casimir wormholes in Einstein gravity
- Dilaton gravity, (quasi-) black holes, and scalar charge
- Spacetime Singularities in Generalized Brans-Dicke Theories
- On the stability of electrovacuum space-times in scalar-tensor gravity
- Novel electrically charged wormhole, black hole and black bounce exact solutions in hybrid metric-Palatini gravity
- Horizons, throats and bounces in hybrid metric-Palatini gravity with a non-zero potential
- Trace anomaly contributions to semi-classical wormhole geometries