The iron line variability of NGC2992: a direct probe of AGN central engines

We propose a monitoring campaign (8 observation of virgul55 ksec each) of the brightSeyfert 1.5 NGC2992, which reveals dramatic Xray variability. The aim of theproposal is to directly probe how and on what timescale the broad Fe lineresponds to the continuum. The analysis of the previous Xray observationsunveiled that its Xray flux varies by a factor of 10 over a year with the broadFe line responding to the continuum. Such behavior is extremely rare and makesNGC2992 a unique laboratory to investigate the central engine of AGN. Theproposed monitoring maximizes the probability of covering as much of the dynamicrange of continuum and Fe line variability as possible. These observations willallow us to obtain the best constraints to date of the Fe line properties for each flux state. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]