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X-Ray Spectral Parameters for a Sample of 95 Active Galactic Nuclei | | A. Vasylenko
; V. Zhdanov
; E. Fedorova
; | | Date: |
19 Jan 2015 | | Abstract: | 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
Gamma, relative reflection R, equivalent width of Fe $K_{alpha}$ line (EW Fe
$K_{alpha}$), hydrogen column density $N_{H}$, exponential cut-off energy
$E_{c}$ and intrinsic luminosity $L_{corr}$ are determined for all objects of
the sample. We investigated correlations Gamma - R, EW Fe $K_{alpha}$ -
$L_{corr}$, Gamma - $E_{c}$, EW Fe $K_{alpha}$ - $N_{H}$. Dependence Gamma -
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 $K_{alpha}$ and $L_{corr}$, but it is not strong. We have not found
statistically significant deviations from the AGN Unified Model. | | Source: | arXiv, 1501.4555 | | Services: | Forum | Review | PDF | Favorites | |
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