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

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

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop..167b&link_type=abstract

XMM-Newton Proposal ID #06549101

Mathematics

Probability

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Ngc 2992

Scientific paper

We propose a monitoring campaign (8 observation of ~55 ksec each) of the bright Seyfert 1.5 NGC2992, which reveals dramatic X-ray variability. The aim of the proposal is to directly probe how and on what timescale the broad Fe line responds to the continuum. The analysis of the previous X-ray observations unveiled that its X-ray flux varies by a factor of 10 over a year with the broad Fe line responding to the continuum. Such behavior is extremely rare and makes NGC2992 a unique laboratory to investigate the central engine of AGN. The proposed monitoring maximizes the probability of covering as much of the dynamic range of continuum and Fe line variability as possible. These observations will allow us to obtain the best constraints to date of the Fe line properties for each flux state.

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