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A snapping cosmic string in a de Sitter or anti-de Sitter universe | | J. Podolsky
; J. B. Griffiths
; | | Date: |
22 Mar 2004 | | Journal: | Class.Quant.Grav. 21 (2004) 2537-2548 | | Subject: | gr-qc | | Abstract: | We present and describe an exact solution of Einstein’s equations which represents a snapping cosmic string in a vacuum background with a cosmological constant $Lambda$. The snapping of the string generates an impulsive spherical gravitational wave which is a particular member of a known family of such waves. The global solution for all values of $Lambda$ is presented in various metric forms and interpreted geometrically. It is shown to represent the limit of a family of sandwich type N Robinson-Trautman waves. It is also derived as a limit of the C-metric with $Lambda$, in which the acceleration of the pair of black holes becomes unbounded while their masses are scaled to zero. | | Source: | arXiv, gr-qc/0403089 | | Services: | Forum | Review | PDF | Favorites | |
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