Jet Kinematics of AGNs at High Radio Frequencies

Jorstad, S.G., Marscher, A.P., Lister, M., Stirling, A.M., Cawthorne, T.V., Gomez, J-L., Gear, W.K., Stevens, J. A., Robson, E.I., Smith, P.S. and Forster, J.R. (2006) Jet Kinematics of AGNs at High Radio Frequencies. In: UNSPECIFIED.

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We have completed a 3 yr program of polarization monitoring of 15 active galactic nuclei with the Very Long Baseline Array at 7 mm wavelength. At some epochs the images are accompanied by nearly simultaneous polarization measurements at 3 mm, 1.35/0.85 mm, and optical wavelengths. We determine apparent velocities in the jets of all sources in the sample. We suggest a new method to estimate Doppler factor of the jet components based on their VLBI properties. This allows us to derive the Lorentz factors and viewing angles of superluminal knots and opening angles of the jets.

Item Type	Conference or Workshop Item (Other)
Additional information	Original paper can be found at: http://www.astrosociety.org/pubs/cs/348.html--Copyright Astronomical Society of the Pacific
Date Deposited	15 May 2025 16:18
Last Modified	25 Feb 2026 00:06

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In: Procs of the Blazar Variability Workshop II: Entering the GLAST Era - ASP Conf Series 350 :

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