The Second Caltech--Jodrell Bank VLBI Survey. II. Observations of 102 of 193 Sources

Creators: Henstock, D. R.; Browne, I. W. A.; Wilkinson, P. N.; Taylor, G. B.; Vermeulen, R. C.; Pearson, T. J.; Readhead, A. C. S.

Abstract

This is the second of two papers presenting the Second Caltech-Jodrell Bank VLBI survey (CJ2). The CJ2 sample consists of 193 flat- and gigahertz-peaked-spectrum sources selected at 4850 MHz. In this paper we present images of the remaining 102 sources with a resolution of ~1 mas, obtained using VLBi snapshot observations at 4992 MHz with a global array. We also present integrated radio spectra for the entire CJ2 sample.

Additional Information

© 1995 American Astronomical Society. We thank the staff at the VLA, VLBA, and European VLBI Network observatories who took part in these observations and the staff of the JPL/Caltech Block II Correlator for their assistance. We also thank Sally Hales for help in obtaining the 151 MHz flux densities and for advice on the use of flux density scales. We are grateful to Jim Douglas for providing 365 MHz flux densities prior to publication and to Gerde Bruyn for providing 327 MHz flux densities from the WENSS prior to publication. We are indebted to Martin Shepherd for writing and maintaining DIFMAP and for the many modifications he made on our behalf. Thanks also to Roddy Calder for help with Figure 4. D.R. H. acknowledges the receipt of a SERC research studentship. The work done by the Caltech group was supported by the NSF under grant AST-9117100.

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Published - 1995ApJS__100____1H.pdf

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