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The automatic detection of faint quasars from CFHT grens plates

Published online by Cambridge University Press:  19 July 2016

C.J. Keable  and
R.G. Clowes
C.J. Keable
Affiliation:
Dept of Astronomy, University of Edinburgh
R.G. Clowes
Affiliation:
Royal Observatory, Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UNITED KINGDOM

Abstract

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The automatic quasar detection system (AQD, see Clowes, 1984) has been used to successfully select quasars from prism plates taken by the United Kingdom Schmidt Telescope. Surveys compiled using this technique have a magnitude limit of B-19.5. We present work here which extends the possible survey limit to B-21. This is done by putting plates taken with the Canada-France-Hawaii Telescope's grens (see Richardson, 1984, for a description) through the AQD measuring system. We will follow this work with a comparable photometric survey of the same field.

Type
I. Surveys
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 55 - 56
Copyright
Copyright © Reidel 1986 

References

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MacGillivray, H.T. and Stobie, R.S., Vistas in Astron. 27, 433, (1984).Google Scholar
Richardson, E.H., ‘Can.J. Phys’, 57, 1365, (1979).Google Scholar
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