Newman-Janis algorithm's application to regular black hole models
arXiv:2305.04697 · doi:10.1103/PhysRevD.107.124020
Abstract
We examine the Newman-Janis algorithm's application to an exact regular static solution sustained by a minimally coupled scalar field with a non-standard kinetic term. Although coordinate complexification leads to a regular Kerr-like black hole, we are facing discrepancies in Einstein's equations in a fairly small domain, for which the regularizing parameter is responsible. Outside this most intriguing region, the geometry is nothing but the standard Kerr spacetime.
arXiv commentMatches the published version in Phys. Rev. D (except the original title in the pdf version)
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