Singularities in rotating black holes coupled to a massless scalar field
arXiv:1905.04613
Abstract
We employ a late-time expansion to study the interior of rotating black holes coupled to a massless scalar field in asymptotically flat spacetime. We find that decaying fluxes of scalar radiation into the black hole necessitate the existence of a null singularity at the Cauchy horizon and a central spacelike singularity at radius . In particular, the decaying influxes source a localized cloud of scalar radiation near whose amplitude grows unboundedly large as advanced time . The scalar cloud inevitably results in a central spacelike singularity at late times , with the curvature near diverging like , where is a constant.
20 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:1902.08323