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A Comparison of the Structures of 3CR Quasars and Blank Field Radio Sources

Published online by Cambridge University Press:  14 August 2015

F. N. Owen ,
J. J. Puschell  and
R. A. Laing
F. N. Owen
Affiliation:
National Radio Astronomy Observatory
J. J. Puschell
Affiliation:
National Radio Astronomy Observatory
R. A. Laing
Affiliation:
National Radio Astronomy Observatory

Extract

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The purpose of this communication is to update our knowledge of the radio structural properties of quasars and blank field radio sources (blank field ≡ any radio source without an identification on the Palomar Sky Survey prints). The quasar sample consists of all sources (25) with angular sizes greater than 10 arcsec in the list of Jodrell Bank quasars observed by Owen, Porcas and Neff (1978). The blank fields consist of 16 3CR sources also with structures >10 arcsec based on Cambridge 5 km telescope observations. The sources were selected in low-frequency surveys; their emission at ν < 1 GHz is dominated by extended components with steep spectra. Thus, both samples should be oriented randomly in space except for a slight bias to be in the plane of the sky.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 97: Extragalactic Radio Sources , 1982 , pp. 435 - 436
Copyright
Copyright © Reidel 1982 

References

Longair, M.S. (1975) M.N.R.A.S. 173, 309.Google Scholar
Owen, F. N., Porcas, R. W., and Neff, S. G. (1978) A.J. 83, 1009.Google Scholar
Potash, R. I. and Wardle, J. F. C. (1980) Ap.J. Letters 239, L42.Google Scholar