Speaker
Description
The number of gravitational wave (GW) events observed is rapidly growing, and will soon reach statistical significance with the next generation of detectors. Astrophysically sourced GW are expected to be a new complementary and totally independent tracer of large-scale structure. Consequently, cross-correlation techniques offer the opportunity to fully exploit the potential of this new channel for cosmological parameter inference by connecting it to other observables. We are developing a flexible framework based on the angular power spectrum, which can correlate different observables and will help us evaluate the impact of GW observations on parameter constraints. In a recent work, we applied this method to the correlation between GW and photometric galaxy clustering data, showcasing the strength of this technique for precisely determining the Hubble parameter, to better than 1%.