Impulsive waves in the Nariai universe

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dc.creatorOrtaggio, Marcello
dc.date2001-10-31
dc.date2002-02-19
dc.date.accessioned2026-07-07T06:23:24Z
dc.date.available2026-07-07T06:23:24Z
dc.descriptionA new class of exact solutions is presented which describes impulsive waves propagating in the Nariai universe. It is constructed using a six-dimensional embedding formalism adapted to the background. Due to the topology of the latter, the wave front consists of two non-expanding spheres. Special sub-classes representing pure gravitational waves (generated by null particles with an arbitrary multipole structure) or shells of null dust are analyzed in detail. Smooth isometries of the metrics are briefly discussed. Furthermore, it is shown that the considered solutions are impulsive members of a more general family of radiative Kundt spacetimes of type-II. A straightforward generalization to impulsive waves in the anti-Nariai and Bertotti-Robinson backgrounds is described. For a vanishing cosmological constant and electromagnetic field, results for well known impulsive pp-waves are recovered.
dc.description9 pages, 4 figures, REVTeX 4. v3: added Appendix B, revised references, minor changes in the text. To appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/gr-qc/0110126
dc.identifierhttp://arxiv.org/abs/gr-qc/0110126
dc.identifierPhys.Rev. D65 (2002) 084046
dc.identifierdoi:10.1103/PhysRevD.65.084046
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96216
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleImpulsive waves in the Nariai universe
dc.typetext

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