Abstract
ABSTRACT Radio galaxies are a key population to understand the importance of relativistic jets in active galactic nucleus (AGN) feedback. We present the results of a systematic, broad-band X-ray spectral analysis of hard X-ray selected radio galaxies to investigate their nuclear structures. In this study, we focus on the seven most radio-loud, X-ray obscured narrow-line radio galaxies in the Swift/BAT 70 month AGN catalogue. The spectra from 0.5 keV up to 66 keV obtained with Suzaku and NuSTAR of six objects are newly analysed here by utilizing the X-ray clumpy torus model (xclumpy), whereas we refer to the literature for the results of Centaurus A. We find that these radio galaxies have similar torus covering fractions compared with radio-quiet AGNs at the same Eddington ratios (−3 < log λEdd < −1). This result implies that (1) the torus structure is not an important factor that determines the presence of jets and (2) AGN jets have physically little effect on the torus.
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