Relieving scale disparity in binary black hole simulations
Relieving scale disparity in binary black hole simulations
Worldtube excision is a method of reducing computational burden in numerical relativity simulations of binary black holes in situations where there is a good analytical model of the geometry around (one or both of) the objects. Two such scenarios of relevance in gravitational-wave astronomy are (1) the case of mass-disparate systems, and (2) the early inspiral when the separation is still large. Here we illustrate the utility and flexibility of this technique with simulations of the fully self-consistent radiative evolution in the model problem of a scalar charge orbiting a Schwarzschild black hole under the effect of scalar-field radiation reaction. We explore a range of orbital configurations, including inspirals with large eccentricity (which we follow through to the final plunge and ringdown) and hyperbolic scattering.
251402
Wittek, Nikolas A.
4a864c55-f268-487a-82ff-e88ff1c30d70
Barack, Leor
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Pfeiffer, Harald P.
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Pound, Adam
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Deppe, Nils
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Kidder, Lawrence E.
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Macedo, Alexandra
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Nelli, Kyle C.
242537b3-0036-4f62-83d7-592fb753c757
Throwe, William
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Vu, Nils L.
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27 June 2025
Wittek, Nikolas A.
4a864c55-f268-487a-82ff-e88ff1c30d70
Barack, Leor
f08e66d4-c2f7-4f2f-91b8-f2c4230d0298
Pfeiffer, Harald P.
a3719e4c-eadc-471e-9ff8-40954e11c084
Pound, Adam
5aac971a-0e07-4383-aff0-a21d43103a70
Deppe, Nils
79c13dd4-2d62-4a83-972a-4c83deaa1463
Kidder, Lawrence E.
1634a3ff-3b38-48ba-8347-2377a4aed0e3
Macedo, Alexandra
798ebc5d-92ee-48a9-b6ea-b43d69dc043f
Nelli, Kyle C.
242537b3-0036-4f62-83d7-592fb753c757
Throwe, William
50cdea4e-c92b-4ff6-bb3b-017a998793eb
Vu, Nils L.
c39f91ae-e404-4afd-9e45-e010ff33c8cc
Wittek, Nikolas A., Barack, Leor, Pfeiffer, Harald P., Pound, Adam, Deppe, Nils, Kidder, Lawrence E., Macedo, Alexandra, Nelli, Kyle C., Throwe, William and Vu, Nils L.
(2025)
Relieving scale disparity in binary black hole simulations.
Physical Review Letters, 134 (25), , [251402].
(doi:10.1103/kskl-8dcj).
Abstract
Worldtube excision is a method of reducing computational burden in numerical relativity simulations of binary black holes in situations where there is a good analytical model of the geometry around (one or both of) the objects. Two such scenarios of relevance in gravitational-wave astronomy are (1) the case of mass-disparate systems, and (2) the early inspiral when the separation is still large. Here we illustrate the utility and flexibility of this technique with simulations of the fully self-consistent radiative evolution in the model problem of a scalar charge orbiting a Schwarzschild black hole under the effect of scalar-field radiation reaction. We explore a range of orbital configurations, including inspirals with large eccentricity (which we follow through to the final plunge and ringdown) and hyperbolic scattering.
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Accepted/In Press date: 3 June 2025
Published date: 27 June 2025
Identifiers
Local EPrints ID: 503457
URI: http://eprints.soton.ac.uk/id/eprint/503457
ISSN: 1079-7114
PURE UUID: ccfd236f-f062-4805-bab1-9203d01ca258
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Date deposited: 01 Aug 2025 16:36
Last modified: 22 Aug 2025 02:05
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Contributors
Author:
Nikolas A. Wittek
Author:
Harald P. Pfeiffer
Author:
Nils Deppe
Author:
Lawrence E. Kidder
Author:
Alexandra Macedo
Author:
Kyle C. Nelli
Author:
William Throwe
Author:
Nils L. Vu
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