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arXiv 1012.4939gr-qcastro-ph.CO
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从致密双星聚并中对引力波的定向相干搜索

A targeted coherent search for gravitational waves from compact binary coalescences

Ian Harry, Stephen Fairhurst

摘要:

我们提出了一种方法进行有针对性的,连贯的搜索紧凑的二进制聚结的细节。该搜索是专门为电磁瞬变,如伽马射线暴的后续行动。我们推导出高斯探测器噪声的相干搜索统计量,并讨论了一致性,多探测器搜索重合方法的好处。为了减轻非平稳数据的影响,我们引入了一些信号一致性测试,包括零信噪比,幅度一致性和几个$χ^{2}$测试。我们展示了高斯噪声和LIGO第四次科学运行的数据上的搜索性能,并验证了信号一致性测试能够消除大多数噪声瞬变,并且搜索的效率与高斯噪声中的效率相当。

英文摘要:

We present the details of a method for conducting a targeted, coherent search for compact binary coalescences. The search is tailored to be used as a followup to electromagnetic transients such as Gamma Ray Bursts. We derive the coherent search statistic for Gaussian detector noise and discuss the benefits of a coherent, multi-detector search over coincidence methods. To mitigate the effects of non-stationary data, we introduce a number of signal consistency tests, including the null SNR, amplitude consistency and several $χ^{2}$ tests. We demonstrate the search performance on Gaussian noise and on data from LIGO's fourth science run and verify that the signal consistency tests are capable of removing the majority of noise transients and the search gives an efficiency comparable to that achieved in Gaussian noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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