3C 216: A Powerful FRII Seyfert 1 Galaxy

Abstract

3C 216 has a weak accretion flow luminosity, well below the Seyfert1/QSO dividing line, weak broad emission lines (BELs) and powerful radio lobes. As a consequence of the extreme properties of 3C 216, it is the most convincing example known of an FR II radio source that is kinetically dominated: the jet kinetic luminosity, $Q$, is larger than the total thermal luminosity (IR to X-ray) of the accretion flow, $L_{bol}$. Using three independent estimators for the central black hole mass, we find that the jet in 3C 216 is very super-Eddington, $3.3L_{Edd}<\bar{Q}<10L_{Edd}$, where $\bar{Q}$ is the long term time averaged $Q(t)$, calculated at 151 MHz. It is argued that 3C 216 satisfies the contemporaneous kinetically dominated condition, $R(t)\equiv Q(t)/L_{bol}(t)>1$, either presently or in the past based on the rarity of $L_{bol}>L_{Edd}$ quasars. The existence of $R(t)>1$ AGN is a strong constraint on the theory of the central engine of FRII radio sources.

References in corpus (5)

• Determining Central Black Hole Masses in Distant Active Galaxies and Quasars. II. Improved Optical and UV Scaling Relationships
• Magnetically Driven Jets in the Kerr Metric
• Orientation dependency of broad-line widths in quasars and consequences for black-hole mass estimation
• Estimate black hole masses of AGNs using ultraviolet emission line properties
• PKS 1018-42: A Powerful Kinetically Dominated Quasar

Cited by in corpus (7)

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• Evidence for a maximum jet efficiency for the most powerful radio galaxies
• Kinetically Dominated FRII Radio Sources
• Calibrating Emission Lines as Quasar Bolometers
• High energy emission component, population, and contribution to the extragalactic gamma-ray background of gamma-ray emitting radio galaxies
• 3-D Simulations of Ergospheric Disk Driven Poynting Jets
• The FRII Broad Line Seyfert 1 Galaxy: PKSJ 1037-2705