Catching AGN in Deep Minimum States to Unveil Their Core Environment

Details Catching AGN in Deep Minimum States to Unveil Their Core Environment Catching AGN in Deep Minimum States to Unveil Their Core Environment

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...10s&link_type=abstract

XMM-Newton Proposal ID #06701703

Physics

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Agn 1 (Short), Agn 2 (Short), Follow-Up Agn (

Scientific paper

The deep minimum state of AGNs is characterized by a strongly suppressed or even absent primary continuum. As the continuum disappears weak spectral features like relativistic iron lines or ``narrow'' soft X-ray emission lines from ionised plasmas become highly significant and their parameters can be determined. Therefore deep minimum states offer unique possibilities to investigate in detail the physics of the reprocessed components in AGN, including the immediate vicinity of the supermassive black hole. Applying our experience (successful trigger of a long deep minimum observation) we propose two triggered 10ks-short snapshot observations and one 80ks-long follow-up observation of an AGN in deep minimum state. We will identify deep minimum states based on Swift and XMM-Newton slew observations.

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