SKA-era localized fast radio bursts as a precise cosmological probe

摘要

Despite unclear physical origins,fast radio bursts(FRBs)with known redshifts measured from precisely localized host galaxies have been widely proposed as a cosmological probe(see ref.[1]for a recent review).This is realized by the Macquart relation[2],which makes a connection between the intergalactic medium(IGM)dispersion measure(DM)and redshift.