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arXiv · 0810.5523

Jet-BLR connection in the radio galaxy 3C 390.3

T. G. Arshakian·J. Leon-Tavares·A. P. Lobanov·V. H. Chavushyan·L. Popovic·A. I. Shapovalova·A. Burenkov·J. A. Zensus
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Abstract

Variations of the optical continuum emission in the radio galaxy 3C 390.3 are compared to the properties of radio emission from the compact, sub-parsec-scale jet in this object. We showed that very long-term variations of optical continuum emission (>10 years) is correlated with the radio emission from the base of the jet located above the disk, while the optical long-term variations (1-2 years) follows the radio flares from the stationary component in the jet with time delay of about 1 year. This stationary feature is most likely to be a standing shock formed in the continuous relativistic flow seen at a distance of ~0.4 parsecs from the base of the jet. To account for the correlations observed we propose a model of the nuclear region of 3C 390.3 in which the beamed continuum emission from the jet and counterjet ionizes material in a subrelativistic outflow surrounding the jet. This results in the formation of two conical regions with double-peaked broad emission lines (in addition to the conventional broad line region around the central nucleus) at a distance ~0.6 parsecs from the central engine.

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T. G. Arshakian, J. Leon-Tavares, A. P. Lobanov, V. H. Chavushyan, L. Popovic, A. I. Shapovalova, A. Burenkov, J. A. Zensus. 2009-01-17. Jet-BLR connection in the radio galaxy 3C 390.3. https://arxiv.org/abs/0810.5523

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