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arXiv 0901.4696gr-qc
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用唯象模板族寻找黑洞双星的数值模拟信号

Searching for numerically-simulated signals of black hole binaries with a phenomenological template family

Lucia Santamaria, Badri Krishnan, John T. Whelan

摘要:

最近的进展,在数值相对论现在允许计算的二元黑洞合并,而后牛顿和微扰技术可以用来模拟的inspiral和ringdown阶段。到目前为止,大多数引力波搜索都使用了各种后牛顿启发的模板来搜索由紧凑的二元物体合并产生的信号。Ajith等人已经为非旋转的二元黑洞系统产生了混合波形,包括合并过程的三个阶段,并从它们构造了唯象模板,以参数化的形式捕获这些波形的特征。作为将目前的螺旋搜索扩展到更高质量的二元黑洞系统的第一步,我们已经使用这些唯象波形来搜索注入到合成LIGO数据中的数值模拟信号,作为NINJA项目的一部分。

英文摘要:

Recent progress in numerical relativity now allows computation of the binary black hole merger, whereas post-Newtonian and perturbative techniques can be used to model the inspiral and ringdown phases. So far, most gravitational-wave searches have made use of various post-Newtonian-inspired templates to search for signals arising from the coalescence of compact binary objects. Ajith et al have produced hybrid waveforms for non-spinning binary black-hole systems which include the three stages of the coalescence process, and constructed from them phenomenological templates which capture the features of these waveforms in a parametrized form. As a first step towards extending the present inspiral searches to higher-mass binary black-hole systems, we have used these phenomenological waveforms in a search for numerically-simulated signals injected into synthetic LIGO data as part of the NINJA project.

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