Mathematics – Logic
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...182.4406t&link_type=abstract
American Astronomical Society, 182nd AAS Meeting, #44.06; Bulletin of the American Astronomical Society, Vol. 25, p.868
Mathematics
Logic
Scientific paper
The Caltech--Jodrell Bank VLBI survey (CJ survey) extends the Pearson--Readhead survey (Pearson et al., these proceedings) to weaker sources with 1.3 Jy > S_5 GHz> 0.7 Jy. The complete flux-density limited sample includes 135 sources, of which 92 can be mapped with Mark II VLBI. We have made maps at both 1.6 GHz and 5 GHz of most of these. The main object of the survey was to obtain images of sufficient quality to enable us to: (1) Classify the objects via their radio structure and to identify any new types of objects. (2) To identify unusual objects (which are not simple core-jets) for further study. These include gravitational lens candidates, compact symmetric objects, compact steep spectrum objects, etc. (3) Provide a sample large enough to make statistical tests of cosmological evolution, unified schemes, etc. (4) Identify candidate superluminal sources for which follow-up observations may be able to measure a velocity, to provide a larger sample for statistical studies of superluminal motion.
Pearson Timothy. J.
Polatidis Antonis
Readhead Anthony C. S.
Thakkar Dhiraj D.
Wilkinson Peter N.
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