Title: A blind search for a common signal in gravitational wave detectors Show Chinese title

Title: 引力波探测器中普通信号的盲搜索

Abstract: We propose a blind, template-free method for the extraction of a common signal between the Hanford and Livingston detectors and apply it especially to the GW150914 event. We construct a log-likelihood method that maximizes the cross-correlation between each detector and the common signal and minimizes the cross-correlation between the residuals. The reliability of this method is tested using simulations with an injected common signal. Finally, our method is used to assess the quality of theoretical gravitational wave templates for GW150914. Show Chinese abstract

Abstract: 我们提出了一种盲目的、无需模板的方法，用于提取汉福德和利文斯顿探测器之间的共同信号，并特别将其应用于GW150914事件。 我们构建了一个对数似然方法，该方法最大化了每个探测器与共同信号之间的互相关性，并最小化了残差之间的互相关性。 通过注入共同信号的模拟测试了此方法的可靠性。 最后，我们的方法被用来评估理论引力波模板的质量，针对GW150914事件。