The role of Dark Matter interaction in galaxy clusters

TL;DR

This paper investigates how dark matter interactions with dark energy influence galaxy cluster dynamics, revealing detectable effects on rotation and distribution alignment compared to standard models.

Contribution

It introduces a toy model to analyze dark matter-dark energy interactions and employs a genetic algorithm to estimate interaction parameters, highlighting their observable impact.

Findings

Interaction affects galaxy cluster rotation and distribution alignment

Detectable effects even in simple galactic models

Interaction parameters estimated via genetic algorithm

Abstract

We consider a toy model to analyze the consequences of dark matter interaction with a dark energy background on the overall rotation of galaxy clusters and the misalignment between their dark matter and baryon distributions when compared to {\Lambda}CDM predictions. The interaction parameters are found via a genetic algorithm search. The results obtained suggest that interaction is a basic phenomenon whose effects are detectable even in simple models of galactic dynamics.