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A model of the broad-band continuum of NGC 5548

P. Magdziarz·O. Blaes
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Abstract

We discuss a model of the central source in Seyfert 1 galaxy NGC 5548. The model assumes a three phase disk structure consisting of a cold outer disk, a hot central disk constituting a Comptonizing X/gamma source, and an intermediate unstable and complex phase emitting a soft excess component. The model qualitatively explains broad-band spectrum and variability behavior assuming that the soft excess contributes significantly to the continuum emission and drives variability by geometrical changes of the intermediate disk zone.

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P. Magdziarz, O. Blaes. 1997-10-16. A model of the broad-band continuum of NGC 5548. https://arxiv.org/abs/astro-ph/9710183

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