A 5-GHz Southern Hemisphere VLBI Survey of Compact Radio Sources - II

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).

arXiv comment35 pages (6 ps figures and 5 tables), to appear in AJ April 1998

References in corpus (3)

• Unified Schemes for Radio-Loud Active Galactic Nuclei
• The Identification of EGRET Sources with Flat-Spectrum Radio Sources
• A 5 GHz Southern Hemisphere VLBI Survey of Compact Radio SOurces - I

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