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MCG-5-23-16 is one of the first AGN where relativistic reverberation in theiron K line originating in the vicinity of the supermassive black hole wasfound, based on a short XMM-Newton observation. In this work, we present theresults from long X-ray observations using Suzaku, XMM-Newton and NuSTARdesigned to map the emission region using X-ray reverberation. A relativisticiron line is detected in the lag spectra on three different time-scales,allowing the emission from different regions around the black hole to beseparated. Using NuSTAR coverage of energies above 10 keV reveals a lag betweenthese energies and the primary continuum, which is detected for the first timein an AGN. This lag is a result of the Compton reflection hump responding tochanges in the primary source in a manner similar to the response of therelativistic iron K line.

Observations of MCG-5-23-16 with Suzaku, XMM-Newton and NuSTAR: Disk tomography and Compton hump reverberation