Spectral analysis of magnetic fields in simulated galaxy clusters

TL;DR

This paper uses cosmological simulations to analyze magnetic fields in galaxy clusters, demonstrating the role of small-scale dynamo amplification and exploring how spectral variations relate to cluster history and properties.

Contribution

It introduces a new galaxy cluster sample from simulations and applies dynamo theory to study magnetic spectra in the intracluster medium.

Findings

All clusters show small-scale dynamo amplification signatures.

Dynamo theory can effectively describe the magnetic spectrum.

Spectral variations depend on cluster dynamical history or properties.

Abstract

We introduce a new sample of galaxy clusters obtained from a cosmological simulation covering an unprecedented dynamical range. All the clusters in our sample show a clear signature of small-scale dynamo amplification. We show that it is possible to use dynamo theory for studying the magnetic spectrum in the intracluster medium. We study if the intrinsic variations on the spectra depend on the dynamical history of each cluster or on some host cluster properties.