Testing Comptonization models using BeppoSAX observations of Seyfert 1 galaxies

Details Testing Comptonization models using BeppoSAX observations of Seyfert 1 galaxies Testing Comptonization models using BeppoSAX observations of Seyfert 1 galaxies

2001-01-13

arxiv.org/abs/astro-ph/0101219v1

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures (uses newpasp.sty included). To appear in Proc. of "X-ray astronomy 2000",(Palermo Sep. 2000), Eds. R. Giac

Scientific paper

10.1086/321629

We used high quality BeppoSAX data of 6 Seyfert galaxies to test realistic thermal Comptonization models. Our main effort was to adopt a Comptonization model taking into account the anisotropy of the soft photon field. The best fit parameter values of the temperature and optical depth of the corona and of the reflection normalization obtained fitting this class of models to the data are substantially different from those derived fitting the same data with the power law + cut--off model commonly used. The two models also provide different trends and correlation between the physical parameters, which has major consequences for the physical interpretation of the data

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