Polarimetric VLBI observations of 0735+178

Details Polarimetric VLBI observations of 0735+178 Polarimetric VLBI observations of 0735+178

2001-01-26

arxiv.org/abs/astro-ph/0101483v1

Astronomy and Astrophysics

Astrophysics

LaTeX, 4 pages, 4 PostScript figures. To be published in the Proceedings of the 5th EVN Symposium, eds. Conway, J., Polatidis,

Scientific paper

We present a new centimeter polarimetric VLBI image of the BL Lac object 0735+178. This source exhibits one of the most pronounced curvatures observed in jets of AGNs, with two sharp apparent bends of 90 degrees within the inner 2 milliarcseconds from the core. Through the analysis of the data gathered over the past decades we study whether this curvature is produced by precession of the jet with ejection of ballistic components, or a precession in such a way that components' velocity vector are always parallel to the jet axis. These possibilities are also studied by comparison with 3D hydrodynamic relativistic simulations of precessing jets.

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