A Multi-Epoch VLBI Survey of the Kinematics of CJF Sources; Part I: Model-Fit Parameters and Maps

Abstract

Context: This is the first of a series of papers presenting VLBI observations of the 293 Caltech-Jodrell Bank Flat-Spectrum (hereafter CJF) sources and their analysis. Aims: One of the major goals of the CJF is to make a statistical study of the apparent velocities of the sources. Methods: We have conducted global VLBI and VLBA observations at 5 GHz since 1990, accumulating thirteen separate observing campaigns. Results: We present here an overview of the observations, give details of the data reduction and present the source parameters resulting from a model-fitting procedure. For every source at every observing epoch, an image is shown, built up by restoring the model-fitted components, convolved with the clean beam, into the residual image, which was made by Fourier transforming the visibility data after first subtracting the model-fitted components in the uv-plane. Overplotted we show symbols to represent the model components. Conclusions: We have produced VLBI images of all but 5 of the 293 sources in the complete CJF sample at several epochs and investigated the kinematics of 266 AGN.

arXiv commentFigure 1 and Table 2 are only available in electronic form at the CDS and soon at http://www.mpifr-bonn.mpg.de/staff/sbritzen/cjf.html

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• The Radio Fundamental Catalogue. I. Astrometry
• The kinematics in the pc-scale jets of AGN The case of S5 1803+784
• The soft X-ray properties of AGN from the CJF sample; A correlation analysis between soft X-ray and VLBI properties
• A Giant Metrewave Radio Telescope search for associated HI 21cm absorption in high-redshift flat-spectrum sources
• Associated 21-cm absorption towards the cores of radio galaxies
• Non-radial motion in the TeV blazar S5 0716+714 The pc-scale kinematics of a BL Lac Object
• Giant Metrewave Radio Telescope detection of associated HI 21cm absorption at $z=1.2230$ towards TXS1954+513
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• Flaring radio lanterns along the ridge line: long-term oscillatory motion in the jet of S5 1803+784
• Tracing the merger-driven evolution of active galaxies using the CJF sample
• Deconstructing blazars: A different scheme for jet kinematics in flat-spectrum AGN
• Gamma-rays in flat-spectrum AGN: Revisiting the fast jet hypothesis with the CJF sample
• Proper motion and apparent contraction in J0650+6001
• AGN jets under the microscope: A divide?
• A search for binary black hole candidates from the VLBI images of AGNs
• Superluminal Motion and Jet Parameters in the High-Redshift Blazar J1429+5406
• On the Lorentz Factor of Superluminal Sources