The Campanelli-Lousto and veiled spacetimes

Abstract

The Campanelli-Lousto solutions of Brans-Dicke theory, usually reported as black holes are reconsidered and shown to describe, according to the values of a parameter, wormholes or naked singularities. The veiled Schwarzschild metric recently used as an example to discuss conformal frames and their equivalence corresponds to a special case of the CL metric. The conformal cousins of these solutions, and of the Riegert black hole solution of conformally invariant Weyl theory, are analysed, leading to a word of caution when interpreting physically spacetimes generated via conformal transformations from known seed solutions.

Added some discussion, and appendix, and a few references, removed typographical errors. Version to appear in Phys. Rev. D

References in corpus (8)

• Time delay and magnification centroid due to gravitational lensing by black holes and naked singularities
• Gravitational Lensing by Wormholes
• The (pseudo)issue of the conformal frame revisited
• Brans-Dicke wormholes in the Jordan and Einstein frames
• Gravitational lensing by wormholes
• On the Energy Issue for a Class of Modified Higher Order Gravity Black Hole Solutions
• Wormhole dynamics in spherical symmetry
• Cold black holes and conformal continuations

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