The unified scheme seen with INTEGRAL detected AGN - Archive ouverte HAL
Communication Dans Un Congrès Année : 2010

The unified scheme seen with INTEGRAL detected AGN

V. Beckmann
C. Ricci
  • Fonction : Auteur
T. J.-L. Courvoisier
  • Fonction : Auteur
J. Alfonso-Garzón
  • Fonction : Auteur
A. Domingo
  • Fonction : Auteur
J. M. Mas-Hesse
  • Fonction : Auteur
P. Lubiński
  • Fonction : Auteur
A. A. Zdziarski
  • Fonction : Auteur

Résumé

The INTEGRAL mission provides a large data set for studying the hard X-ray properties of AGN and allows to test the unified scheme for AGN. We present results based on the analysis of 199 AGN. A difference between the Seyfert types is detected in slightly flatter spectra with higher cut-off energies and lower luminosities for the type 2 AGN. When applying a Compton reflection model, the underlying continua (Γ~=1.95) appear the same in Seyfert 1 and 2, and the reflection strength is R~=1 in both cases, with differences in the inclination angle only. More luminous objects appear to be more massive and there is also a general trend for the absorbed sources and type 2 AGN to have lower Eddington ratios. The number counts are consistent with no evolution of the observed AGN. The unified model for Seyfert galaxies seems to hold, showing in hard X-rays that the central engine is the same in Seyfert 1 and 2 galaxies, seen under different inclination angle and absorption.
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Dates et versions

hal-00656060 , version 1 (03-01-2012)

Identifiants

Citer

V. Beckmann, S. Soldi, C. Ricci, T. J.-L. Courvoisier, J. Alfonso-Garzón, et al.. The unified scheme seen with INTEGRAL detected AGN. X-ray Astronomy 2009, Sep 2009, Bologna, Italy. pp.365-368, ⟨10.1063/1.3475259⟩. ⟨hal-00656060⟩
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