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Spectral Energy Distributions of PG Quasars

Published online by Cambridge University Press:  07 August 2017

G. Neugebauer ,
D. B. Sanders ,
B. T. Soifer ,
S. Phinney  and
R. F. Green
G. Neugebauer
Affiliation:
Division of Physics, Mathematics and Astronomy, California Institute of Technology, Downs Lab of Physics, 320-47, Pasadena, CA 91125
D. B. Sanders
Affiliation:
Division of Physics, Mathematics and Astronomy, California Institute of Technology, Downs Lab of Physics, 320-47, Pasadena, CA 91125
B. T. Soifer
Affiliation:
Division of Physics, Mathematics and Astronomy, California Institute of Technology, Downs Lab of Physics, 320-47, Pasadena, CA 91125
S. Phinney
Affiliation:
Division of Physics, Mathematics and Astronomy, California Institute of Technology, Downs Lab of Physics, 320-47, Pasadena, CA 91125
R. F. Green
Affiliation:
National Optical Astronomy Observatories, P. O. Box 26732, Tucson, AZ 85726-6732

Abstract

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Between 1013 - 1017 Hz the continua of all PG quasars can be described in the most general terms by a model consisting of two broad peaks of thermal radiation. There is no evidence for energetically significant nonthermal radiation in this frequency range in the continua of the PG quasars. We have compiled continuum observations for PG quasars from 6 cm to 2 KeV, including IRAS data for all these objects and new ground-based infrared data at 10 μm for many of these quasars. Sixty-three of the PG quasars were detected by IRAS in at least one band. The overall energy distributions for these sixty-three PG quasars are shown in Figure 1.

Type
Part 7: Dust, Molecules, Infrared and MM Radiation
Information
Symposium - International Astronomical Union , Volume 134: Active Galactic Nuclei , 1989 , pp. 390 - 392
Copyright
Copyright © Kluwer 1989