Self-Gravitating Non-Abelian Cosmic String Solution

Details Self-Gravitating Non-Abelian Cosmic String Solution Self-Gravitating Non-Abelian Cosmic String Solution

1998-07-15

arxiv.org/abs/gr-qc/9807034v2

Phys.Rev. D59 (1999) 025009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages in REVTEX with 7 figures in postscript. To appear in PRD nov.'98

Scientific paper

10.1103/PhysRevD.59.025009

The coupled Einstein-Yang-Mills equations on a time dependent axially symmetric spacetime are investigated, without a priori any conditions on the gauge field. There is numerical evidence for the existence of a regular solution with the desired asymptotic features. Just as in the supermassive abelian counterpart model, the formation of a singularity at finite distance of the core of the string depends critically on a parameter of the model, i.e., the constant value of one of the magnetic components of the YM potentials. The multiple-scale method could supply decisive answers concerning the stability of the solution.

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