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Direction of Parsec-Scales Jets for 9220 Active Galactic Nuclei

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arxiv 2203.13750 v1 pith:64TZYMVH submitted 2022-03-25 astro-ph.HE astro-ph.GAastro-ph.IM

A.V. Plavin (ASC Lebedev) , Y.Y. Kovalev (ASC Lebedev , MIPT , MPIfR) , A. B. Pushkarev (CrAO , ASC Lebedev) This is my paper · ORCID
classification astro-ph.HEastro-ph.GAastro-ph.IM
keywords activeagnsdirectiondirectionsfrequenciesgalacticjetsmethod
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The direction of parsec-scale jets in active galactic nuclei (AGNs) is essential information for many astrophysical and astrometric studies, including linear polarization and magnetic field structure, frequency-dependent synchrotron opacity, proper motion, and reference frame alignment. We developed a rigorous, simple, and completely automated method to measure the directions from calibrated interferometric visibility data at frequencies ranging from 1.4 GHz to 86 GHz. We publish the results for 9220 AGNs with the typical accuracy below 10 degrees. An internal check of the method comparing the directions between different observing frequencies as well as with previous publications verifies the robustness of the measured values.

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