Relative binning for complete gravitational-wave parameter estimation with higher-order modes and precession, and applications to lensing and third-generation detectors

Understand

Once a gravitational wave signal is detected, the measurement of its source parameters is important to achieve various scientific goals.

• This is done through Bayesian inference, where the analysis cost increases with the model complexity and the signal duration.
• For typical binary black hole signals with precession and higher-order modes, one has 15 model parameters.
• With standard methods, such analyses require at least a few days.