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ID: 318103.0, MPI für Gravitationsphysik / Astrophysical Relativity
Geometry and Regularity of Moving Punctures
Authors:Hannam, Mark; Husa, Sascha; Pollney, Denis; Bruegmann, Bernd; O'Murchadha, Niall
Date of Publication (YYYY-MM-DD):2007-12-14
Title of Journal:Physical Review Letters
Volume:99
Issue / Number:24
Sequence Number of Article:241102
Review Status:not specified
Audience:Not Specified
Abstract / Description:The puncture method for black holes in numerical relativity has recently been extended to punctures that move across the grid, which has led to significant advances in numerical simulations of black-hole binaries. We examine how and why the method works. The coordinate singularity and hence the geometry at the puncture are found to change during evolution, but sufficient regularity is maintained for the numerics to work. We construct an analytic solution for the stationary state of a black hole in spherical symmetry that matches the numerical result and demonstrates that the numerics are not dominated by artefacts at the puncture but indeed find the analytical result.
External Publication Status:published
Document Type:Article
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:DOI:10.1103/PhysRevLett.99.241102
URL:http://link.aps.org/abstract/PRL/v99/e241102
LOCALID:arXiv:gr-qc/0606099
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