Title: The Investigation of Non-Thermal Hard X-ray Emission in Cluster of Galaxies Abell 3667
Proposal ID: 0120140
Subject category: Extragalactic Object
Principal investigator: Lutovinov
Institute: Space Research Institute (IKI)
Abstract
We propose a 500 ksec INTEGRAL observation of Abell 3667, the cluster of galaxies with a powerful radio
halo. A detection of the hard X-ray emission from this cluster at $E\ge100$ keV will allow us to distinguish
between different mechanisms of generation of the hard X-ray emission (inverse Compton vs. suprathermal
bremsstrahlung), and to derive the energy densities of the magnetic field and relativistic particles in the
intracluster medium.