Exploiting the Einstein Telescope to solve the Hubble tension

Understand

We probe four cosmological models which, potentially, can solve the Hubble tension according to the dark energy equation of state.

• In this context, we demonstrate that the Einstein Telescope is capable of achieving a relative accuracy below $1\%$ on the Hubble constant independently of the specific dark energy model.
• We firstly build mock catalogs containing gravitational wave events for one, five and ten years of observations, and above Signal-to-Noise Ratio equal to nine.
• From these catalogs, we extract the events which are most likely associated with possible electromagnetic counterpart detected by THESEUS.