Null Limits of the C-Metric |
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Authors: | J. Podolský J. B. Griffiths |
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Affiliation: | (1) Institute of Theoretical Physics, Charles University, V Holeovikách 2, 18000 Prague 8, Czech Republic;(2) Department of Mathematical Sciences, Loughborough University, Loughborough, Leics, LE11 3TU, U.K. |
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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. |
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Keywords: | C-metric snapping cosmic string impulsive spherical wave |
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