The complex iron line in NGC 7469 observed by BeppoSAX

Abstract

In this letter we present analysis of BeppoSAX data from a long look at the Seyfert 1 galaxy NGC 7469. The presence of a soft excess below 0.8 keV is confirmed by our analysis and no warm absorber component is required to fit the spectrum. A complex iron emission line and the Compton reflection hump are clearly detected. The profile of the line is too broad to associate this feature with distant matter. In addition, the observed soft excess and the energy of the iron line E_{Fe}=6.8 keV strongly support a scenario in which the hard X-rays are reprocessed by a photoionized accretion disc. This hypothesis was tested fitting the BeppoSAX spectrum with the ionized disc reflection model of Ross & Fabian. A second narrow line component, in addition to that produced in the disc, is also required to fit the observed iron line profile. A high energy cut-off around 150 keV is clearly detected in the spectrum.

5 pages, 6 figures, accepted for pubblication in MNRAS Letters

References in corpus (7)

• XMM-EPIC observation of MCG-6-30-15: Direct evidence for the extraction of energy from aspinning black hole?
• X-ray Reflection By Photoionized Accretion Discs
• High-Resolution X-ray Spectroscopy and Modeling of the Absorbing and Emitting Outflow in NGC 3783
• An XMM-Newton observation of the luminous Seyfert 1 galaxy Markarian 509
• Temporal characteristics of the X-ray emission of NGC 7469
• The complex iron line of NGC 5506
• The BeppoSAX broad-band spectrum and variability of the Seyfert 1 NGC 3783

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