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X-ray variability in a sample of Seyfert 1 type AGN.

R. Walter, T. J.-L. Courvoisier

Abstract

X-ray observations of several Seyfert 1 type AGN observed many times with EXOSAT are presented and analysed. The spectral parameters are extracted independently in the medium and soft X-ray spectral ranges. The variations observed in the two spectral bands and their relation are discussed and compared to the spectral variations observed in other well known sources

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Key concepts: Physics, Astrophysics, Spectral analysis, X-ray, Spectral properties, Spectral line, Spectral shape analysis, Astronomy