The Hard X-ray Emission of Cen A

Understand

The radio galaxy Cen A has been detected all the way up to the TeV energy range.

• This raises the question about the dominant emission mechanisms in the high-energy domain.
• Spectral analysis allows us to put constraints on the possible emission processes.
• Here we study the hard X-ray emission as measured by INTEGRAL in the 3-1000 keV energy range, in order to distinguish between a thermal and non-thermal inverse Compton process.