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Charged black-bounce spacetimes

Franzin, E.
•
Liberati, S.
•
Mazza, J.
altro
Visser, M.
2021
  • journal article

Periodico
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Abstract
Given the recent development of rotating black-bounce-Kerr spacetimes, for both theoretical and observational purposes it becomes interesting to see whether it might be possible to construct black-bounce variants of the entire Kerr-Newman family. Specifically, herein we shall consider black-bounce-Reissner-Nordstrom and black-bounce-Kerr-Newman spacetimes as particularly simple and clean everywhere-regular black hole "mimickers" that deviate from the Kerr-Newman family in a precisely controlled and minimal manner, and smoothly interpolate between regular black holes and traversable wormholes. While observationally the electric charges on astrophysical black holes are likely to be extremely low, vertical bar Q vertical bar/m << 1, introducing any non-zero electric charge has a significant theoretical impact. In particular, we verify the existence of a Killing tensor (and associated Carter-like constant) but without the full Killing tower of principal tensor and Killing-Yano tensor, also we discuss how, assuming general relativity, the black-bounce-Kerr-Newman solution requires an interesting, non-trivial matter/energy content.
DOI
10.1088/1475-7516/2021/07/036
WOS
WOS:000683046300037
Archivio
http://hdl.handle.net/20.500.11767/128374
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85111487597
https://arxiv.org/abs/2104.11376
Diritti
closed access
Soggetti
  • GR black holes

  • quantum black holes

  • Wormholes

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