2015/01/31 by A. A. Vasylenko, V. I. Zhdanov, E. V. Fedorova
Physics and Astronomy · #Active galactic nucleus #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Cosmology #Galaxies: Formation, Evolution, Phenomena #Galaxy #Line (geometry) #Luminosity #Photon #Reflection (computer programming) #Spectral index #Spectral line #astro-ph.HE
paper · pdf · doi:10.1007/s10509-015-2585-z
23 pages, 7 figures, 4 tables, accepted for publication in Astrophysics and Space Science
arxiv created 2015/11/18 · arxiv updated 2015/11/20 · openalex publication_date 2015/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present a broadband X-ray analysis of a new homogeneous sample of 95 active galactic nuclei (AGN) from the 22-month Swift/BAT all-sky survey. For this sample we treated jointly the X-ray spectra observed by XMM-Newton and INTEGRAL missions for the total spectral range of 0.5-250 keV. Photon index Γ, relative reflection R, equivalent width of Fe Kα line (EW Fe Kα), hydrogen column density NH, exponential cut-off energy Ec and intrinsic luminosity Lcorr are determined for all objects of the sample. We investigated correlations Γ- R, EW Fe Kα - Lcorr, Γ- Ec, EW Fe Kα - NH. Dependence Γ- R for Seyfert 1 and 2 type of galaxies has been investigated separately. We found that the relative reflection parameter at low power-law indexes for Seyfert 2 galaxies is systematically higher than for Seyfert 1 ones. This can be related to an increasing contribution of the reflected radiation from the gas-dust torus. Our data show that there exists some anticorrelation between EW Fe Kα and Lcorr, but it is not strong. We have not found statistically significant deviations from the AGN Unified Model.