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The Fleurs Southern Benchmark Program

Published online by Cambridge University Press:  25 April 2016

Michael J. Batty ,
Graeme L. White ,
John D. Bunton ,
David R. Brown  and
Julian B. Corben
Michael J. Batty
Affiliation:
School of Mathematics, Physics, Computing and Electronics, Macquarie University, Sydney School of Electrical Engineering, University of Sydney
Graeme L. White
Affiliation:
Division of Radiophysics, CSIRO, Sydney
John D. Bunton
Affiliation:
School of Electrical Engineering, University of Sydney
David R. Brown
Affiliation:
School of Electrical Engineering, University of Sydney
Julian B. Corben
Affiliation:
School of Electrical Engineering, University of Sydney
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Abstract

A program to determine accurate radio positions and optical identifications of southern flat-spectrum radio sources has been undertaken with the six-dish array of the Fleurs synthesis telescope at 1.4 GHz and using the SERC J sky survey. This sample covers the declination range −80° to −50° and comprises all 198 sources from the Parkes catalogue with α of > −0.5 and flux density of 0.25 Jy.

The radio astrometric phase of the program is complete. We conclude that by comparison with accurate VLBI positions the FST positions have r.m.s. uncertainties of ∼0″.9. There is no global bias in the FST positions at the 0″.2 to 0″.3 level relative to the JPL VLBI extragalactic reference frame. A comparison with positions from the Parkes catalogue shows that in the southern regions the Parkes catalogue has rms position errors of about 9″. There is no significant bias between the FST and Parkes positions.

Type
Miscellaneous Radio Astronomy
Information
Publications of the Astronomical Society of Australia , Volume 8 , Issue 2 , 1989 , pp. 180 - 183
Copyright
Copyright © Astronomical Society of Australia 1989

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