A long hard look at MCG-6-20-15 with XMM-Newton
journal contributionposted on 2009-12-08, 16:25 authored by A. C. Fabian, Simon A. Vaughan, K. Nandra, K. Iwasawa, D. R. Ballantyne, J.C. Lee, A. De Rosa, A. Turner, A. J. Young
We present the first results from a 325-ks observation of the Seyfert 1 galaxy MCG–6-30-15 with XMM-Newton and BeppoSAX. The strong, broad, skewed iron line is clearly detected and is well characterized by a steep emissivity profile within 6rg (i.e. 6GM/c2) and a flatter profile beyond. The inner radius of the emission appears to lie at about 2rg, consistent with results reported from both an earlier XMM-Newton observation of MCG–6-30-15 by Wilms et al. and part of an ASCA observation by Iwasawa et al. when the source was in a lower flux state. The radius and steep emissivity profile do depend however on an assumed incident power-law continuum and a lack of complex absorption above 2.5 keV. The blue wing of the line profile is indented, either by absorption at about 6.7 keV or by a hydrogenic iron emission line. The broad iron line flux does not follow the continuum variations in a simple manner.
CitationMonthly Notices of the Royal Astronomical Society, 2002, 335 (1), pp.L1-L5.
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