X-ray spectral parameters for a sample of 95 active galactic nuclei

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 \(\varGamma\), relative reflection \(R\), equivalent width of Fe \(\mathrm{K}_{\alpha}\) line \(\mathit{EW}_{\mathrm{FeK}}\), hydrogen column density \(N_{\mathrm{H}}\), exponential cut-off energy \(E_{\mathrm{c}}\) and intrinsic luminosity \(L_{\mathrm{corr}}\) are determined for all objects of the sample. We investigated correlations \(\varGamma\)–\(R\), \(\mathit{EW}_{\mathrm{FeK}}\)–\(L_{\mathrm{corr}}\), \(\varGamma\)–\(E_{\mathrm{c}}\), \(\mathit{EW}_{\mathrm{FeK}}\)–\(N_{\mathrm{H}}\). Dependence “\(\varGamma\)–\(R\)” for Seyfert 1/2 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 \(\mathit{EW}_{\mathrm{FeK}}\) and \(L_{\mathrm{corr}}\), but it is not strong. We have not found statistically significant deviations from the AGN Unified Model.