The C-metric as a colliding plane wave space-time
arXiv:gr-qc/0701061 · doi:10.1088/0264-9381/24/5/002
Abstract
It is explicitly shown that part of the C-metric space-time inside the black hole horizon may be interpreted as the interaction region of two colliding plane waves with aligned linear polarization, provided the rotational coordinate is replaced by a linear one. This is a one-parameter generalization of the degenerate Ferrari-Ibanez solution in which the focussing singularity is a Cauchy horizon rather than a curvature singularity.
6 pages. To appear in Classical and Quantum Gravity