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

Black holes produced by collapse of a spherically symmetric charged scalar field in asymptically flat space must contain a null singularity on the Cauchy horizon and a central spacelike singularity.

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Singularities in Reissner–Nordström black holes

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