Grazing Collisions of Black Holes via the Excision of Singularities

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dc.creatorBrandt, Steve
dc.creatorCorrell, Randall
dc.creatorGomez, Roberto
dc.creatorHuq, Mijan
dc.creatorLaguna, Pablo
dc.creatorLehner, Luis
dc.creatorMarronetti, Pedro
dc.creatorMatzner, Richard A.
dc.creatorNeilsen, David
dc.creatorPullin, Jorge
dc.creatorSchnetter, Erik
dc.creatorShoemaker, Deirdre
dc.creatorWinicour, Jeffrey
dc.date2000-09-13
dc.date2000-09-14
dc.date.accessioned2026-07-07T11:29:51Z
dc.date.available2026-07-07T11:29:51Z
dc.descriptionWe present the first simulations of non-headon (grazing) collisions of binary black holes in which the black hole singularities have been excised from the computational domain. Initially two equal mass black holes $m$ are separated a distance $\approx10m$ and with impact parameter $\approx2m$. Initial data are based on superposed, boosted (velocity $\approx0.5c$) solutions of single black holes in Kerr-Schild coordinates. Both rotating and non-rotating black holes are considered. The excised regions containing the singularities are specified by following the dynamics of apparent horizons. Evolutions of up to $t \approx 35m$ are obtained in which two initially separate apparent horizons are present for $t\approx3.8m$. At that time a single enveloping apparent horizon forms, indicating that the holes have merged. Apparent horizon area estimates suggest gravitational radiation of about 2.6% of the total mass. The evolutions end after a moderate amount of time because of instabilities.
dc.description2 References corrected, reference to figure updated
dc.identifierhttps://arxiv.org/abs/gr-qc/0009047
dc.identifierhttp://arxiv.org/abs/gr-qc/0009047
dc.identifierPhys.Rev.Lett.85:5496-5499,2000
dc.identifierdoi:10.1103/PhysRevLett.85.5496
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196846
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.titleGrazing Collisions of Black Holes via the Excision of Singularities
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