Null limits of the C-metric

Abstract

The C-metric is usually understood as describing two black holes which accelerate in opposite directions under the action of some conical singularity. Here, we examine all the solutions of this type which represent accelerating sources and investigate the null limit in which the accelerations become unbounded. We show that the resulting space-times represent spherical impulsive gravitational waves generated by snapping or expanding cosmic strings.

4 pages. To appear in Gen. Rel. Grav

References in corpus (1)

• Boost-rotation symmetric spacetimes - review

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