摘要
Gravitational waves(GWs)can provide important new probes for exploring the evolution of the universe.One significant advantage of GWs is their ability to measure absolute distances on cosmological scales,rather than relative distances,which is crucial for cosmological research,especially in determining the Hubble constant.Analogous to the“standard candles”and“standard ruler”in cosmology,distance measurements based on GWs are referred to as“standard sirens”.
