Multifrequency method for mapping active galactic nuclei with allowance for the frequency-dependent image shift |
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| Authors: | A T Bajkova A B Pushkarev |
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| Institution: | 1.Pulkovo Astronomical Observatory,Russian Academy of Sciences,St. Petersburg,Russia;2.Max Planck Institut für Radioastronomie,Bonn,Germany;3.Crimean Astrophysical Observatory,Crimea,Ukraine |
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| Abstract: | We consider the problem of multifrequency VLBA image synthesis and spectral-index mapping for active galactic nuclei related
to the necessity of taking into account the frequency-dependent image shift. We describe our generalized multifrequency synthesis
algorithm with a spectral correction based on the maximum entropy method. The results of our processing of multifrequency
VLBI data for the radio sources J2202+4216, J0336+3218, and J1419+5423 are presented. |
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