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Evolution of the Parsec-Scale Structures of OJ 287 and 3C 273

Published online by Cambridge University Press:  12 April 2016

R. Ojha ,
D. C. Homan ,
D. H. Roberts  and
J. F.C. Wardle
R. Ojha
Affiliation:
Brandeis University, Waltham, MA 02254, USA
D. C. Homan
Affiliation:
Brandeis University, Waltham, MA 02254, USA
D. H. Roberts
Affiliation:
Brandeis University, Waltham, MA 02254, USA
J. F.C. Wardle
Affiliation:
Brandeis University, Waltham, MA 02254, USA

Abstract

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We have obtained 15 and 22 GHz linear polarization VLBA images of a sample of strong and rapidly variable polarized sources at six epochs over one year. We observe rapid changes, in both cores and jet components, in total intensity, both with and without associated changes in polarization. Changes in the cores are probably associated with the births of new components. Images of one quasar (3C 273) and one BL Lacertae object (OJ 287) from two epochs are shown here. No significant Faraday rotation is observed at any epoch in any position in either source.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 164: Radio Emission from Galactic and Extragalactic Compact Sources , 1998 , pp. 127 - 128
Copyright
Copyright © Astronomical Society of the Pacific 1998

References

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