Dynamic cosmic strings. I

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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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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1103/PhysRevD.63.024011
ISSNs: 0556-2821 (print)
Related URLs:
Subjects: Q Science > Q Science (General)
Divisions : University Structure - Pre August 2011 > School of Mathematics > Applied Mathematics
ePrint ID: 29331
Accepted Date and Publication Date:
Date Deposited: 19 Jul 2006
Last Modified: 31 Mar 2016 11:54
URI: http://eprints.soton.ac.uk/id/eprint/29331

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