Non thermal emission in clusters of galaxies

TL;DR

This paper reviews current knowledge of non-thermal emission in galaxy clusters and discusses how future observations with Simbol-X will help map and understand the origin of relativistic particles and magnetic fields in clusters.

Contribution

It highlights the potential of Simbol-X to distinguish thermal and non-thermal X-ray components and advance understanding of particle acceleration in galaxy clusters.

Findings

Simbol-X will map hard X-ray emission in clusters.

Future observations will clarify the origin of non-thermal emission.

Mapping magnetic fields and relativistic electrons will improve understanding of cluster evolution.

Abstract

I briefly review our current knowledge of the non thermal emission from galaxy clusters and discuss future prospect with Simbol-X. Simbol-X will map the hard X-ray emission in clusters, determine its origin and disentangle the thermal and non-thermal components. Correlated with radio observations, the observation of the non-thermal X-ray emission, when confirmed, will allow to map both the magnetic field and the relativistic electron properties, key information to understand the origin and acceleration of relativistic particles in clusters and its impact on cluster evolution.