Reducing the effect of seismic noise in LIGO searches by targeted veto generation
Reducing the effect of seismic noise in LIGO searches by targeted veto generation
复制标题
通过有针对性的否决权生成来减少 LIGO 搜索中地震噪声的影响
DOI：
10.1088/0264-9381/29/5/055006
复制
发表时间：
2011
影响因子：
3.5
通讯作者：
J. Smith
中科院分区：
文献类型：
--
作者：
D. Macleod;S. Fairhurst;B. Hughey;A. Lundgren;L. Pekowsky;J. Rollins;J. Smith
使用地基激光干涉仪探测和研究引力波的主要障碍之一是地震噪声对仪器灵敏度的影响。环境干扰会导致干涉仪光学器件运动，并以噪声形式耦合到引力波数据输出中，其幅度可能远大于天体物理信号的幅度。我们提出了一种改进的方法，通过将引力波爆发检测算法调整为这些事件的低频特征，并测试与低延迟紧凑二进制合并检测算法的一致性，来识别高地震噪声耦合的时间。该方法已被证明在消除地震源瞬变方面非常有效，所有致密二元合并候选事件中的 60% 在短短 6% 的分析时间内与地震噪声相关
One of the major obstacles to the detection and study of gravitational waves using ground-based laser interferometers is the effect of seismic noise on instrument sensitivity. Environmental disturbances cause motion of the interferometer optics, coupling as noise in the gravitational wave data output whose magnitude can be much greater than that of an astrophysical signal. We present an improved method of identifying times of high seismic noise coupling by tuning a gravitational-wave burst detection algorithm to the low-frequency signature of these events and testing for coincidence with a low-latency compact binary coalescence detection algorithm. This method has been proven highly effective in removing transients of seismic origin, with 60% of all compact binary coalescence candidate events correlated with seismic noise in just 6% of analysis time