| Autor: |
M. E. Costa, Anastasios Tzioumis, R. G. Gough, T. S. Wan, John Reynolds, D.-R. Jiang, G. D. Nicolson, David L. Jauncey, James E. J. Lovell, Steven Tingay, Z.-Q. Shen, David L. Meier, James M. Moran, Graeme L. White, M. W. Sinclair, T. D. van Ommen, David W. Murphy, S.-G. Liang, E. A. King, Xiaoyu Hong, P. M. McCulloch, R. H. Ferris, Philip G. Edwards |
| Rok vydání: |
1998 |
| Předmět: |
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| Zdroj: |
The Astronomical Journal. 115:1357-1370 |
| ISSN: |
0004-6256 |
| DOI: |
10.1086/300284 |
| Popis: |
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). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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