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Spatial Structures of a Complete Sample of Extragalactic Radio Sources North of Declination 70°

Published online by Cambridge University Press:  04 August 2017

A. Eckart  and
A. Witzel
A. Eckart
Affiliation:
Max-Planck-Institut für Radioastronomie, Bonn, W.-Germany
A. Witzel
Affiliation:
Max-Planck-Institut für Radioastronomie, Bonn, W.-Germany

Extract

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With the aim of studying the spatial structures of a complete sample of radio sources found at 6 cm wavelength we selected 13 sources from the “S5–survey” (Kühr et al., 1981) which fulfil the following criteria

1) δ > 70°, |bII| > 10°

2) S5 GHz > 1 Jy (at the epoch of the S5–survey)

3) α5 GHz2.7 GHz > − 1.5 (S ∝ να)

6 of these sources are identified by means of optical spectroscopy with QSOs, 6 are BL Lac-type objects, and the identification of 1 source is presently unknown. Observations at frequencies ranging from radio to X-ray have been reported (Biermann et al., 1981; Biermann et al., 1982; Eckart et al., 1982).

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 110: VLBI and Compact Radio Sources , 1984 , pp. 65 - 66
Copyright
Copyright © Reidel 1984 

References

Biermann, P. et al.: 1981, Astrophys. J. 247, pp. L53–L56.CrossRefGoogle Scholar
Biermann, P. et al.: 1982, Astrophys. J. 252, pp. L1–L5.CrossRefGoogle Scholar
Eckart, A. et al.: 1982, Astron. Astrophys. 108, pp. 157–160.Google Scholar
Kühr, H. et al.: 1981, Astron. Astrophys. Suppl. 45, pp. 367–430.Google Scholar