Precision cosmology with gravitational waves using next-generation ground-based gravitational-wave detectors

Gravitational-wave detectors have started a new era in precision cosmology. The detection of the binary neutron star (BNS) merger GW170817 alongwith its kilonova emission allowed for the first measurement of the Hubble constant through the luminosity distance-redshift relation. Future detectors will observe BNS mergers from far greater distances and, therefore, we can measure other cosmological parameters as well. We determine the capabilities of current networks, planned upgrades, and future observatories in doing precision cosmology with gravitational waves from BNS mergers using an inspiral-merger-ringdown waveform, including tidal terms, to model the BNS signal. We measure the redshift directly from the gravitational-wave signal with the mass-redshift degeneracy of a binary black-hole waveform broken by the additional tidal terms.