高级LIGO数据中的光点故障
Blip glitches in Advanced LIGO data
摘要：
光点毛刺是来自地面引力波观测站的数据中存在的短暂噪声瞬变。这些故障类似于大质量双黑洞合并的引力波信号。因此，瞬变引力波搜索对这种高质量系统和其他潜在的短持续时间源的灵敏度会因存在毛刺而降低。这种故障的起源和发生率在很大程度上是未知的。在本文中，我们探讨人口的光点毛刺在先进的LIGO在其第一次和第二次观测运行。平均而言，我们发现Advanced LIGO数据每小时包含大约两个光点故障。我们确定了四个子集的光点故障与检测器辅助或环境传感器通道，但大多数光点的物理原因仍然不清楚。
英文摘要：
Blip glitches are short noise transients present in data from ground-based gravitational-wave observatories. These glitches resemble the gravitational-wave signature of massive binary black hole mergers. Hence, the sensitivity of transient gravitational-wave searches to such high-mass systems and other potential short duration sources is degraded by the presence of blip glitches. The origin and rate of occurrence of this type of glitch have been largely unknown. In this paper we explore the population of blip glitches in Advanced LIGO during its first and second observing runs. On average, we find that Advanced LIGO data contains approximately two blip glitches per hour of data. We identify four subsets of blip glitches correlated with detector auxiliary or environmental sensor channels, however the physical causes of the majority of blips remain unclear.
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