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    Average AGN X-ray Spectrum

    Date: 23 Feb 2005
    Satellite: XMM-Newton
    Depicts: Average X-ray spectrum of AGN in the X-ray background
    Copyright: MPE

    The light of about 100 distant active galaxies was first corrected to the rest frame of our Milky Way and then added together. Then a simple spectral model without lines was subtracted. The residual spectrum shows a strong, relativistically broadened iron line, which must originate from matter in the immediate vicinity of the black holes.


    Last Update: 23 Feb 2005

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