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Impulsive waves in electrovac direct product spacetimes with Lambda

Marcello Ortaggio·Jiri Podolsky
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Abstract

A complete family of non-expanding impulsive waves in spacetimes which are the direct product of two 2-spaces of constant curvature is presented. In addition to previously investigated impulses in Minkowski, (anti-)Nariai and Bertotti-Robinson universes, a new explicit class of impulsive waves which propagate in the exceptional electrovac Plebanski-Hacyan spacetimes with a cosmological constant Lambda is constructed. In particular, pure gravitational waves generated by null particles with an arbitrary multipole structure are described. The metrics are impulsive members of a more general family of the Kundt spacetimes of type II. The well-known pp-waves are recovered for Lambda=0.

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Marcello Ortaggio, Jiri Podolsky. 2002-09-20. Impulsive waves in electrovac direct product spacetimes with Lambda. https://doi.org/10.1088/0264-9381%2F19%2F20%2F313

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