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Geometry and Regularity of Moving Punctures

Hannam, Mark, Husa, Sascha, Pollney, Denis, Brügmann, Bernd and Murchadha, Niall Ó. 2007. Geometry and Regularity of Moving Punctures. Physical Review Letters 99 (24) , 241102. 10.1103/PhysRevLett.99.241102

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Abstract

Significant advances in numerical simulations of black-hole binaries have recently been achieved using the puncture method. We examine how and why this method works by evolving a single black hole. The coordinate singularity and hence the geometry at the puncture are found to change during evolution, from representing an asymptotically flat end to being a cylinder. 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 evolution is not dominated by artefacts at the puncture but indeed finds the analytical result.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Additional Information: 4 pp.
Publisher: American Physical Society
ISSN: 0031-9007
Last Modified: 04 Jun 2017 03:51
URI: http://orca.cf.ac.uk/id/eprint/27886

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