Singularities in Reissner-Nordström black holes

Abstract

We study black holes produced by the collapse of a spherically symmetric charged scalar field in asymptotically flat space. We employ a late time expansion and show decaying fluxes of radiation through the event horizon imply the black hole must contain a null singularity on the Cauchy horizon and a central spacelike singularity.

17 pages, 3 figures, clarifications and an appendix with numerics added, published version