Detecting Gravitational Wave Signals - Methods, Challenges, and Opportunities
Shio Sakon
Pennsylvania State University

The LIGO-Virgo-KAGRA Collaboration’s fourth observing run (O4) produced a remarkable expansion of the gravitational-wave transient catalog, with nearly three times as many significant detections as were known at the start of the run. Among these were several first-of-their-kind events that challenged existing theories, and the increased rate of detections reflected the improvement in detector sensitivity and analysis capabilities over the past decade.