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A Millimetre/Submillimetre Study of Optically Selected Quasars

Published online by Cambridge University Press:  14 August 2015

W. A. Sherwood ,
G. V. Schultz ,
E. Kreysa  and
H.-P. Gemünd
W. A. Sherwood
Affiliation:
Max Planck Institute for Radio Astronomy
G. V. Schultz
Affiliation:
Max Planck Institute for Radio Astronomy
E. Kreysa
Affiliation:
Max Planck Institute for Radio Astronomy
H.-P. Gemünd
Affiliation:
Max Planck Institute for Radio Astronomy

Extract

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During the past decade many kinds of optical surveys have discovered hundreds of quasars most of which (∼90 %) are radio quiet (<10 mJy at 5 GHz). We have observed two samples of quasars brighter than 17m.6 found by their emission lines and by their ultraviolet excess. We have also selected quasars with redshifts known to be greater than 3.00. A brief description of the observing technique is given by Sherwood et al. (1981b). We have compared our millimetre photometry of flat radio spectrum quasars with that of Ennis and Werner and find excellent agreement. For four of the 8 sources in common the data have been published: Kreysa et al. (1980) and Jones et al. (1981). In addition, analysis of our “noise” shows it to be white, gaussian distributed about zero. The three samples are summarized as follows.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 97: Extragalactic Radio Sources , 1982 , pp. 305 - 306
Copyright
Copyright © Reidel 1982 

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