全球引力波干涉仪网络中的相关磁噪声：观测和意义
Correlated magnetic noise in global networks of gravitational-wave interferometers: observations and implications
摘要：
引力波天文学最雄心勃勃的目标之一是观测随机的引力波背景。两个或更多个检测器中的相关噪声可以引入系统误差，这限制了随机搜索的灵敏度。我们报告的测量相关的磁噪声舒曼共振在广泛分离的LIGO和处女座探测器。我们调查的影响，这种噪音的全球网络的干涉仪，并推导出一个约束的允许耦合的环境磁场测试质量运动的引力波探测器。我们发现，虽然来自全球电磁场的相关噪声可以安全地忽略初始LIGO随机搜索，但它可能会严重影响Advanced LIGO和第三代探测器。
英文摘要：
One of the most ambitious goals of gravitational-wave astronomy is to observe the stochastic gravitational-wave background. Correlated noise in two or more detectors can introduce a systematic error, which limits the sensitivity of stochastic searches. We report on measurements of correlated magnetic noise from Schumann resonances at the widely separated LIGO and Virgo detectors. We investigate the effect of this noise on a global network of interferometers and derive a constraint on the allowable coupling of environmental magnetic fields to test mass motion in gravitational-wave detectors. We find that while correlated noise from global electromagnetic fields could be safely ignored for initial LIGO stochastic searches, it could severely impact Advanced LIGO and third-generation detectors.
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