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We present results from an 87-ks Suzaku observation of the canonicallow-excitation radio galaxy (LERG) NGC 6251. We have previously suggested thatLERGs violate conventional AGN unification schemes: they may lack an obscuringtorus and are likely to accrete in a radiatively inefficient manner, withalmost all of the energy released by the accretion process being channeled intopowerful jets. We model the 0.5-20 keV Suzaku spectrum with a single power lawof photon index $\Gamma=1.82^{+0.04}_{-0.05}$, together with two collisionallyionized plasma models whose parameters are consistent with the known galaxy-and group-scale thermal emission. Our observations confirm that there are nosignatures of obscured, accretion-related X-ray emission in NGC 6251, and weshow that the luminosity of any such component must be substantiallysub-Eddington in nature.

The Suzaku View of the Disk-Jet Connection in the Low Excitation Radio Galaxy NGC 6251