How to Study LIGO Noise

In order to increase the sensitivity of Advanced LIGO to astrophysical events, various sources of instrumental and environmental noise must be identified and ameliorated. Here we explore a single example from the LIGO Hanford instrument. On April 10, 2017, a cluster of strong glitches (transient noise events) were clearly visible in the gravitational wave channel between 16:30 and 18:30 UTC. LIGO Scientific Collaboration scientists have developed software tools to search for correlations between anomalous behavior in the gravitational wave channel and the performance recorded by the myriad of instrumental or environmental sensors operating at that time. We will show how these tools are used to identify possible causes for the observed glitches.