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VLBA Imaging of a Large Sample of Blazars

Published online by Cambridge University Press:  12 April 2016

J. M. Attridge ,
D. H. Roberts  and
J. F.C. Wardle
J. M. Attridge
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254, U. S. A.
D. H. Roberts
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254, U. S. A.
J. F.C. Wardle
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254, U. S. A.

Abstract

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As part of our continuing study of parsec-scale magnetic fields in active galactic nuclei we have obtained deep polarization-sensitive images of the blazar 1055+018 with the VLBA at 5 GHz. These dramatic images reveal a magnetized layer of material on the outer surfaces of the jet, distinct from the bulk of the jet. This morphology suggests interaction of the jet with the surrounding medium, the resulting shear stretching the magnetic field lines in the direction of the flow. Further multi-frequency polarization-sensitive observations of 1055+018 offer the opportunity to study radio jet-ambient medium interactions in detail.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 164: Radio Emission from Galactic and Extragalactic Compact Sources , 1998 , pp. 159 - 160
Copyright
Copyright © Astronomical Society of the Pacific 1998

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