The influence of quintessence on the motion of a binary system in cosmology

TL;DR

This paper investigates how quintessence, a form of dark energy, affects the motion of binary systems in cosmology using Schwarzschild spacetime surrounded by quintessential matter, aiming to detect dark energy effects through orbital analysis.

Contribution

It introduces a method to analyze binary system trajectories in a quintessence-influenced spacetime and discusses potential observational signatures of dark energy.

Findings

Quintessence alters the orbital trajectories of binary systems.

The azimuth angle of the pericenter can reveal dark energy effects.

Classification of motion types in quintessential spacetime is provided.

Abstract

We employ the metric of Schwarzschild space surrounded by quintessential matter to study the trajectories of test masses on the motion of a binary system. The results, which are obtained through the gradually approximate approach, can be used to search for dark energy via the difference of the azimuth angle of the pericenter. The classification of the motion is discussed.