Sensitivity curves for searches for gravitational-wave backgrounds
Sensitivity curves for searches for gravitational-wave backgrounds
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DOI：
10.1103/physrevd.88.124032
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发表时间：
2013-10
影响因子：
5
通讯作者：
E. Thrane;J. Romano
中科院分区：
文献类型：
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作者：
E. Thrane;J. Romano
我们提出了一个图形表示的探测器的灵敏度曲线的随机引力波背景，考虑到增加的灵敏度，除了随着时间的推移，从集成频率。该方法适用于在分析波段内具有幂律谱的背景。我们把这些图称为“幂律积分曲线”。为了简单起见，我们考虑使用两个或多个检测器的非偏振和各向同性随机背景的互相关搜索。我们应用我们的方法来构建第二代地基探测器，如先进的LIGO，空间为基础的探测器，如丽莎和大爆炸观测器，和脉冲星定时阵列的定时残差的幂律综合灵敏度曲线。用于生成这些图的代码可在https://dcc.ligo.org/LIGO-P1300115/public上获得，以供有兴趣构建类似灵敏度曲线的研究人员使用。
We propose a graphical representation of detector sensitivity curves for stochastic gravitational-wave backgrounds that takes into account the increase in sensitivity that comes from integrating over frequency in addition to integrating over time. This method is valid for backgrounds that have a power-law spectrum in the analysis band. We call these graphs “power-law integrated curves.” For simplicity, we consider cross-correlation searches for unpolarized and isotropic stochastic backgrounds using two or more detectors. We apply our method to construct power-law integrated sensitivity curves for second-generation ground-based detectors such as Advanced LIGO, space-based detectors such as LISA and the Big Bang Observer, and timing residuals from a pulsar timing array. The code used to produce these plots is available at https://dcc.ligo.org/LIGO-P1300115/public for researchers interested in constructing similar sensitivity curves.