Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-12-12
AIPConf.Proc.924:795-800,2007
Astronomy and Astrophysics
Astrophysics
6 pages,4 figures, contributed talk presented at the Workshop "The multicoloured landscape of compact objects and their explos
Scientific paper
10.1063/1.2774944
The detection of X-ray narrow spectral features in the 5-7 keV band is becoming increasingly more common in AGN observations, thanks to the capabilities of current X-ray satellites. Such lines, both in emission and in absorption, are mostly interpreted as arising from Iron atoms. When observed with some displacement from their rest frame position, these lines carry the potential to study the motion of circumnuclear gas in AGN, providing a diagnostic of the effects of the gravitational field of the central black hole. These narrow features have been often found with marginal statistical significance. We are carrying on a systematic search for narrow features using spectra of bright type 1 AGNs available in the XMM-Newton archive. The aim of this work is to characterise the occurrence of the narrow features phenomenon on a large sample of objects and to estimate the significance of the features through Monte Carlo simulations. The project and preliminary results are presented.
Bianchi Simone
Guainazzi Matteo
Lia Longinotti Anna
Roa-Llamazares Juan
Santos-Lleo Maria
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