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Initial data transients in binary black hole evolutions
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DOI：10.1088/0264-9381/28/15/155019.png)
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摘要
En 中文
We describe a method for initializing characteristic evolutions of the Einstein equations using a linearized solution corresponding to purely outgoing radiation. This allows for a more consistent application of the characteristic (null cone) techniques for invariantly determining the gravitational radiation content of numerical simulations. In addition, we are able to identify the ingoing radiation contained in the characteristic initial data, as well as in the initial data of the 3 + 1 simulation. We find that each component leads to a small but long lasting (several hundred mass scales) transient in the measured outgoing gravitational waves.
Keyword:
CAUCHY-CHARACTERISTIC EXTRACTION
GRAVITATIONAL-WAVES
NUMERICAL RELATIVITY
GENERAL RELATIVITY
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期刊
IF:
3.7
论文数:
1.3W
被引数:
3.0W
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Gravitational wave extraction based on Cauchy-characteristic extraction and characteristic evolutionOAAI
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