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Average AGN X-ray Spectrum

Average AGN X-ray Spectrum


Date: 22 February 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: 1 September 2019
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6-Dec-2024 04:22 UT

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