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A CCD survey of BL Lac objects

Published online by Cambridge University Press:  19 July 2016

Helmut Kuhr and
Josef Fried
Helmut Kuhr
Affiliation:
Max-Planck-Institut fur Radioastronomie, Heidelberg, F.R.G.
Josef Fried
Affiliation:
Max-Planck-Institut fur Radioastronomie, Heidelberg, F.R.G.

Abstract

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A long term project was started at the Max-Planck-Institut fur Astronomie, Heidelberg, to study a complete sample of 46 northern and southern BL Lac objects with flux densities exceeding 1 Jy at 5 GHz using optical spectroscopy, optical polarimetry, and direct deep CCD imaging.

Information

Type
II. Continuum Emission
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986, pp. 125 - 126
Copyright
Copyright © Reidel 1986 

References

Gehren, T., Fried, J., Wehinger, P.A. Wyckoff, S. 1984, Ap. J. 278, 11 Google Scholar
Kuhr, H., Witzel, A. Pauliny-Toth, I.I.P., Nauber, U. 1981, Astron. Astrophys. Suppl. 45, 367 Google Scholar