A dynamical dark energy solution to Hubble-Lema\^{i}tre tension in the light of the multimessenger era

TL;DR

This paper proposes a dynamical dark energy model combined with improved gravitational wave measurements to accurately determine the Hubble constant, potentially resolving the current tension in cosmology.

Contribution

It introduces a new dark energy model and demonstrates how upgraded gravitational wave data can achieve precise Hubble constant measurements.

Findings

Dark sirens can measure H_0 within 2σ accuracy with current GW data.

Upgrades to GW detectors improve sensitivity and reduce contamination.

A new dark energy model enhances constraints on H_0.

Abstract

We show that the gravitational waves measurements have raised the opportunity to measure $H_0$ with dark sirens to within 2$\sigma$, the accuracy required to resolve the \hubble tension. There are two principal reasons for our results: (1) upgrades to GW LIGO-Virgo transient catalogues GWTC-1 and GWTC-2 enhance their sensitive with only 10\% of contamination fraction, and (2) new dark sirens should help to constrain our dynamical EoS. In conjunction, sensitivity upgrades and a new dark energy model will facilitate an accurate inference of the \hubble constant $H_0$ to better with an $\pm 0.077$ error in comparison to the LIGO dark siren with $+14.0$/$-7.0$, which would further solidify the role of dark sirens in late dark energy for precision cosmology in the future.