Relieving scale disparity in binary black hole simulations
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arXiv
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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866916930391113728 |
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| author | Wittek, Nikolas A. Barack, Leor Pfeiffer, Harald P. Pound, Adam Deppe, Nils Kidder, Lawrence E. Macedo, Alexandra Nelli, Kyle C. Throwe, William Vu, Nils L. |
| author_facet | Wittek, Nikolas A. Barack, Leor Pfeiffer, Harald P. Pound, Adam Deppe, Nils Kidder, Lawrence E. Macedo, Alexandra Nelli, Kyle C. Throwe, William Vu, Nils L. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_22290 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Relieving scale disparity in binary black hole simulations Wittek, Nikolas A. Barack, Leor Pfeiffer, Harald P. Pound, Adam Deppe, Nils Kidder, Lawrence E. Macedo, Alexandra Nelli, Kyle C. Throwe, William Vu, Nils L. General Relativity and Quantum Cosmology 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. |
| title | Relieving scale disparity in binary black hole simulations |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2410.22290 |