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Dynamic cosmic strings. I

Record type: Article

The field equations for a time dependent cylindrical cosmic string coupled to gravity are reformulated in terms of geometrical variables defined on a (2+1)-dimensional spacetime by using the method of Geroch decomposition. Unlike the 4-dimensional spacetime the reduced case is asymptotically flat. A numerical method for solving the field equations which involves conformally compactifying the space and including null infinity as part of the grid is described. It is shown that the code reproduces the results of a number of vacuum solutions with one or two degrees of freedom. In the final section the interaction between the cosmic string and a pulse of gravitational radiation is briefly described. This is fully analyzed in the sequel.

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Citation

Sjödin, K.R.P., Sperhake, U. and Vickers, J.A. (2000) Dynamic cosmic strings. I Physical Review D, 63, (2), 024011-[14pp]. (doi:10.1103/PhysRevD.63.024011).

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Published date: 2000

Identifiers

Local EPrints ID: 29331
URI: http://eprints.soton.ac.uk/id/eprint/29331
ISSN: 1550-7998
PURE UUID: 0afd060e-0b67-4097-a092-3b98e86bf119

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Date deposited: 19 Jul 2006
Last modified: 17 Jul 2017 15:58

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Contributors

Author: K.R.P. Sjödin
Author: U. Sperhake
Author: J.A. Vickers

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