Cosmography with next-generation gravitational wave detectors

Understand

Advancements in cosmology through next-generation ground-based gravitational wave observatories will bring in a paradigm shift.

• We explore the pivotal role that gravitational-wave standard sirens will play in inferring cosmological parameters with next-generation observatories, not only achieving exquisite precision but also opening up unprecedented redshifts.
• We examine the merits and the systematic biases involved in gravitational-wave standard sirens utilizing binary black holes, binary neutron stars, and neutron star-black hole mergers.
• Further, we estimate the precision of bright sirens, golden dark sirens, and spectral sirens for these binary coalescences and compare the abilities of various next-generation observatories (A^sharp, Cosmic Explorer, Einstein Telescope, and their possible networks).