Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-12-11
PoS MRU:112,2007
Astronomy and Astrophysics
Astrophysics
3 pages, 3 figures. From planets to dark energy: the modern radio universe October 1-5 2007 University of Manchester, Manchest
Scientific paper
We aim to test the model proposed to explain the correlation between the flux density at 15 GHz of a stationary component in the parsec-scale jet and the optical continuum emission in the radio galaxy 3C~390.3. In the model, the double-peaked emission from 3C~390.3 is likely to be generated both near the disk and in a rotating subrelativistic outflow surrounding the jet, due to ionization of the outflow by the beamed continuum emission from the jet. This scenario is chosen since broad-emission lines are observed to vary following changes in the inner radio jet. For recent epochs we have imaged and modelled the radio emission of the inner jet of 3C~390.3, which was observed with very long baseline interferometry at 15 GHz, 22 GHz and 43 GHz, to image the inner part of the parsec-scale jet, locate the exact region where the bulk of the continuum luminosity is generated and search for the mechanism that drives the double-peaked profile emission. We present the preliminary results of testing the model using data from 11 years of active monitoring of 3C~390.3.
Arshakian Tigran G.
Chavushyan Vahram H.
Leon-Tavares Jonathan
Lobanov Andrei P.
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