Jet-BLR connection in the radio galaxy 3C 390.3
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.
Keywords
Cite
@article{arxiv.0810.5523,
title = {Jet-BLR connection in the radio galaxy 3C 390.3},
author = {T. G. Arshakian and J. Leon-Tavares and A. P. Lobanov and V. H. Chavushyan and L. Popovic and A. I. Shapovalova and A. Burenkov and J. A. Zensus},
journal= {arXiv preprint arXiv:0810.5523},
year = {2009}
}
Comments
8 pages, 4 figures. Submitted for the proceedings of the workshop "The central kiloparsec: AGN and their hosts" held in Ierapetra, Crete, 4-6 June 2008. In this version Fig. 2 is replaced by correct one