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  Geometry and Regularity of Moving Punctures

Hannam, M., Husa, S., Pollney, D., Bruegmann, B., & O'Murchadha, N. (2007). Geometry and Regularity of Moving Punctures. Physical Review Letters, 99(24): 241102. doi:10.1103/PhysRevLett.99.241102.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4753-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4755-8
Genre: Journal Article

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0606099v1.pdf (Preprint), 130KB
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 Creators:
Hannam, Mark, Author
Husa, Sascha1, Author              
Pollney, Denis1, Author              
Bruegmann, Bernd, Author
O'Murchadha, Niall, Author
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1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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 Abstract: 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.

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 Dates: 2007-12-14
 Publication Status: Published in print
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 Identifiers: eDoc: 318103
DOI: 10.1103/PhysRevLett.99.241102
URI: http://link.aps.org/abstract/PRL/v99/e241102
Other: arXiv:gr-qc/0606099
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Title: Physical Review Letters
Source Genre: Journal
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Pages: - Volume / Issue: 99 (24) Sequence Number: 241102 Start / End Page: - Identifier: -