A 5-GHz Southern Hemisphere VLBI Survey of Compact Radio Sources - II
Z. -Q. Shen, T. -S. Wan, J. M. Moran, D. L. Jauncey, J. E. Reynolds, A. K. Tzioumis, R. G. Gough, R. H. Ferris, M. W. Sinclair, D. -R. Jiang, X. -Y. Hong, S. -G. Liang, P. G. Edwards, M. E. Costa, S. J. Tingay, P. M. McCulloch, J. E. J. Lovell, E. A. King, G. D. Nicolson, D. W. Murphy, D. L. Meier, T. D. van Ommen, G. L. White
Abstract
We report the results of a 5-GHz southern-hemisphere snapshot VLBI observation of a sample of blazars. The observations were performed with the Southern Hemisphere VLBI Network plus the Shanghai station in 1993 May. Twenty-three flat-spectrum, radio-loud sources were imaged. These are the first VLBI images for 15 of the sources. Eight of the sources are EGRET (> 100 MeV) gamma-ray sources. The milliarcsecond morphology shows a core-jet structure for 12 sources, and a single compact core for the remaining 11. No compact doubles were seen. Compared with other radio images at different epochs and/or different frequencies, 3 core-jet blazars show evidence of bent jets, and there is some evidence for superluminal motion in the cases of 2 blazars. The detailed descriptions for individual blazars are given. This is the second part of a survey: the first part was reported by Shen et al. (AJ 114(1997)1999).
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