Modelling the dynamics of global monopoles

Details Modelling the dynamics of global monopoles Modelling the dynamics of global monopoles

1998-01-19

arxiv.org/abs/gr-qc/9801061v2

Phys.Rev. D58 (1998) 063502

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

44 pages, REVTeX, 11 PostScript figures, submitted to the Physical Review D. Abstract's corrected

Scientific paper

10.1103/PhysRevD.58.063502

A thin wall approximation is exploited to describe a global monopole coupled to gravity. The core is modelled by de Sitter space; its boundary by a thin wall with a constant energy density; its exterior by the asymptotic Schwarzschild solution with negative gravitational mass $M$ and solid angle deficit, $\Delta\Omega/4\pi = 8\pi G\eta^2$, where $\eta$ is the symmetry breaking scale. The deficit angle equals $4\pi$ when $\eta=1/\sqrt{8\pi G} \equiv M_p$. We find that: (1) if $\eta

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