Pratyusava Baral

The LIGO-Virgo-KAGRA Collaboration uses multiple independent search pipelines to detect gravitational waves, often resulting in multiple triggers (so-called g-events) for a single astrophysical event. These triggers are grouped into superevents, raising a critical question for multimessenger astronomy: which g-event provides the most accurate sky localization in low latency for neutrino and electromagnetic follow-up?

Next-generation ground-based gravitational-wave detectors, such as Cosmic Explorer (CE), are expected to be sensitive to gravitational-wave signals with frequencies as low as 5 Hz, allowing signals to spend a significant amount of time in the detector frequency band. As a result, the effects caused by the rotation of the Earth become increasingly important for such signals.