English

The Campanelli-Lousto and veiled spacetimes

General Relativity and Quantum Cosmology 2013-05-30 v2 Cosmology and Nongalactic Astrophysics

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.

Keywords

Cite

@article{arxiv.1208.2513,
  title  = {The Campanelli-Lousto and veiled spacetimes},
  author = {Luciano Vanzo and Sergio Zerbini and Valerio Faraoni},
  journal= {arXiv preprint arXiv:1208.2513},
  year   = {2013}
}

Comments

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