Model-Based Cross-Correlation Search for Gravitational Waves from Scorpius X-1

Understand

We consider the cross-correlation search for periodic GWs and its potential application to the LMXB Sco X-1.

• This method coherently combines data from different detectors at the same time, as well as different times from the same or different detectors.
• By adjusting the maximum time offset between a pair of data segments to be coherently combined, one can tune the method to trade off sensitivity and computing costs.
• In particular, the detectable signal amplitude scales as the inverse fourth root of this coherence time.