Comparing an analytical spacetime metric for a merging binary to a fully nonlinear numerical evolution using curvature scalars
Comparing an analytical spacetime metric for a merging binary to a fully nonlinear numerical evolution using curvature scalars
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将合并双星的分析时空度量与使用曲率标量的完全非线性数值演化进行比较
DOI:
10.1103/physrevd.97.084007
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发表时间:
2018
影响因子:
5
通讯作者:
Nakano, Hiroyuki
中科院分区:
文献类型:
--
作者:
Sadiq, Jam;Zlochower, Yosef;Nakano, Hiroyuki
We introduce a new geometrically invariant prescription for comparing two different spacetimes based on geodesic deviation. We use this method to compare a family of recently introduced analytical spacetime representing inspiraling black-hole binaries to fully nonlinear numerical solutions to the Einstein equations. Our method can be used to improve analytical spacetime models by providing a local measure of the effects that violations of the Einstein equations will have on timelike geodesics, and indirectly, gas dynamics. We also discuss the advantages and limitations of this method.
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DOI:
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