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An Optical Survey for Very Faint Quasar Candidates

Published online by Cambridge University Press:  12 April 2016

Donald Hamilton
Donald Hamilton*
Affiliation:
The Department of Physics, The University of Chicago, Chicago, Illinois, U.S.A.

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In recent years the development of fast optical telescopes with large corrected fields, of fine-grained, high DQE emulsions such as IIIa-J/F, and the use of rapid scanning microdensitometers and computers, have all made deep photometric studies of large areas of the sky tractable. I am in the process of conducting such a survey using the prime focus cameras of the CTIO and KPNO 4-meter telescopes. Skylimited plates are taken in four colors defined by filter/emulsion characteristics. Pertinent information about the photometric system is given in Table 1. The large database from this survey of about fifteen areas of the sky is being used to address many problems both extragalactic and galactic in nature. A preliminary report on studies of faint blue stellar objects, quasar candidates, will be presented here for seven of the fifteen fields. Table II lists some information about the fields used for this study.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 78: Astronomy with Schmidt-type telescopes , 1984 , pp. 461 - 465
Copyright
Copyright © Reidel 1984

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