Title: Hard X-ray emission from clusters of galaxies

Title: Hard X-ray emission from clusters of galaxies

Proposal ID: 0120206
Subject category: Extragalactic Object
Principal investigator: Hornstrup
Institute: Danish Space Research Institute

Abstract

We propose to observe two nearby clusters of galaxies (Coma and Perseus) with INTEGRAL. The aim of the observations is to detect and study the spectra and spatial extension of the Hard X-ray emission (HXT) from the clusters. We expect this emission to be non-thermal, and be of the order of 10\% of the thermal emission (based on data from BeppoSAX on Coma). We want to get a good S/N in the 20+ keV range. We have simulated JEM-X observations and estimated the IBIS observations of the HXT, confirming the feasibility of the observations.