Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995yera.conf...15k&link_type=abstract
The XXVIIth Young European Radio Astronomers Conference, ed. D.A. Green and W. Steffen, in association with Cambridge University
Astronomy and Astrophysics
Astronomy
Scientific paper
Synchrotron emission of a jet in the strong radial magnetic field of an AGN is analyzed. Variable radio spectra of some quasars and galaxies had been earlier explained by this model. A next interesting step is a simulation of a theoretical structure for such objects in the model and comparison of it with the VLBI observations. First results for such model maps are presented here. It is shown that jet maps depend strongly on the observed angle of the jet axis, opening angle of a cone jet in the picture plane, frequency, as well as on the time variability of geometrical and physical parameters of a relativistic plasma flow across the jet entrance. Preliminary qualitative comparing shows that the obtained model maps may be similar with the typical observed VLBI structure of AGNs. Often observed multi-component structures can be explained by the single jet in the model, if the flow of relativistic particles from the active nucleus varies in time.
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