Exploring the disc/jet interaction in the radio-loud quasar 4C +74.26 with Suzaku

Abstract

We report on a 90 ks Suzaku observation of the radio-loud quasar 4C +74.26. The source was observed in its highest flux state to date, and we find that it brightened by about 20 per cent during the observation. We see evidence of spectral hardening as the count rate increases and also find that the rms variability increases with energy up to about 4 keV. We clearly detect a broadened Fe line but conclude that it does not require any emission from inside about 50 r_g, although a much smaller inner radius cannot be ruled out. The large inner radius of our best fit implies that the inner disc is either missing or not strongly illuminated. We suggest that the latter scenario may occur if the power-law source is located high above the disc, or if the emission is beamed away from the disc.

arXiv comment11 pages, 9 figures. Accepted for publication in MNRAS

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• Suzaku View of the Swift/BAT Active Galactic Nuclei. V. Torus Structure of Two Luminous Radio-loud AGNs (3C 206 and PKS 0707-35)
• The X-ray reflection spectrum of the radio-loud quasar 4C 74.26
• Suzaku Observation of the Brightest Broad-Line Radio Galaxy 4C 50.55 (IGR J 21247+5058)
• The Hard X-Ray View of Reflection, Absorption, and the Disk-Jet Connection in the Radio-Loud AGN 3C 33
• Signatures of the disk-jet coupling in the Broad-line Radio Quasar 4C+74.26
• Broad Band X-ray Constraints on the Accreting Black Hole in Quasar 4C 74.26
• Broadband X-ray Spectral Study of Nuclear Structure in Local Obscured Radio Galaxies