The formation of the Seyfert continuum

dc.creatorPetrucci, P. O.
dc.date2002-12-10
dc.date.accessioned2026-07-07T02:06:49Z
dc.date.available2026-07-07T02:06:49Z
dc.descriptionWe discuss recent results on the Seyfert spectral variability. Their observed high energy variability is generally consistent with X-ray spectral slop fluctuations produced by change of the soft photon luminosity in the sense that spectra soften when the UV flux increases. These behaviors strongly favor a thermal origin for the X-ray emission in these objects. We present the case of NGC 7469, showing the results of the reanalysis of the simultaneous IUE/XTE observations of this object using a realistic thermal Comptonization model to fit the continuum instead of the simple power law approximation adopted in the past.
dc.description8 pages, 9 figures. Proceeding of the Fifth Italian National Meeting on AGNs, 11-14 June 2002 Como Italy. All the proceedings at http://www.unico.it/ilaria/AGN5/proceedings.html
dc.identifierhttps://arxiv.org/abs/astro-ph/0212235
dc.identifierhttp://arxiv.org/abs/astro-ph/0212235
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5493
dc.subjectAstrophysics
dc.titleThe formation of the Seyfert continuum
dc.typetext

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