A VLBI study of 20 southern extragalactic radio sources

This paper describes a 5 GHz VLBI survey in the southern hemisphere. The first observation of 23 extragalactic radio sources was conducted in November 1992. Twenty VLBI images were obtained, of which 15 sources show core-jet structure, one has a two-sided jet, and three sources are unresolved. No co...

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Bibliographic Details
Published in:Chinese astronomy and astrophysics 1996, Vol.20 (4), p.415-425
Main Authors: Shen, Zhi-qiang, Wan, Tong-shan, Hong, Xiao-yu, Jiang, Dong-rong, Liang, Shi-guang
Format: Article
Language:English
Subjects:
extragalactic radio sources
superluminal radio sources
VLBI
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Summary:This paper describes a 5 GHz VLBI survey in the southern hemisphere. The first observation of 23 extragalactic radio sources was conducted in November 1992. Twenty VLBI images were obtained, of which 15 sources show core-jet structure, one has a two-sided jet, and three sources are unresolved. No compact double source was found. Eleven of the 16 sources with core-jet (including a two-aided jet) show evidence of jet bending. In addition, four sources appear to be superluminal, of which three sources are new.
ISSN:0275-1062
1879-128X
DOI:10.1016/S0275-1062(96)00056-2