Models of optical/UV continuum in AGN. Constraints from NGC 5548 monitoring campaign

Details Models of optical/UV continuum in AGN. Constraints from NGC 5548 monitoring campaign Models of optical/UV continuum in AGN. Constraints from NGC 5548 monitoring campaign

1996-09-25

arxiv.org/abs/astro-ph/9609175v1

Astronomy and Astrophysics

Astrophysics

TeX file, uses epsf.sty and mn.tex, 12 pages, 6 Postscript figures, accepted for publication in MNRAS (Sept. 96)

Scientific paper

We analyse the data from the optical/IUE observational campaign of the Seyfert galaxy NGC 5548 in the context of 10 phenomenological models. On the basis of the optical/UV data as well as constraints from the X-ray observations we can favour one model of the nucleus: an accretion disc with an inner radius cutoff surrounded by a hot corona. The second acceptable model for optical/UV data is a distribution of optically thin clouds. However, X-ray constraints which were crucial in the analysis of disc type models could not have been applied; further development of this model is necessary.

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